Category Archives: Hive products

The end is nigh

A brief triptych of items this week as I’m struggling with an intermittent broadband connection on the remote west coast 1.

Great view but no signal

There are worse places to be cutoff …

Summer honey

There are no significant amounts of heather in central Fife and there’s none within range of my colonies. Work and other commitments mean it’s not practical to take my colonies to the Angus glens, so when the summer nectar flow finishes so does my beekeeping season.

The summer honey I produce is clear, runny honey. It is best described as mixed floral or blossom honey. In some years it has a significant amount of lime in it.

Lime honey has a greenish tinge and a wonderful zesty flavour. In other years it lacks the lime but is no less delicious.

Honey

Honey

Last year it was “Heinz” honey i.e. 57 varieties. I looked at the pollen content during the excellent Scottish Beekeepers Microscopy course and there was a very wide range of tree and flower pollens, most of which remained unidentified.

What was striking was the relative abundance of pollen in contrast to the ‘control’ samples of supermarket honey. Most of these had probably been subjected to significant filtration during processing.

I’ll return to pollen in honey, and more specifically pollen in local honey shortly.

Following a judicious amount of ‘on the spot’ testing (i.e. dipping my finger into broken honey comb and tasting 😉 ) some of the honey this year has the ‘lime zest’ and, with the flow over, it’s now time to collect it for extraction.

Clearing supers

Towards the end of the summer colonies should be strong. A double brood National hive with three or four supers contains a lot of bees.

To remove the supers it’s first necessary to remove the bees.

Porter bee escape

Some beekeepers use smelly pads to achieve this, some use modified leaf blowers and many use a crownboard with a Porter bee escape (a sort of one-way valve for bees).

I’ve never liked the idea of putting a non-toxic blend of natural oils and herb extracts (the description of Bee Quick) anywhere near my delicately flavoured honey. I know most is capped. However, I want to avoid any risk of tainting the final product.

A leaf blower seems pretty barbaric to me. Shaking bees off the super frames leaves a lot of disorientated bees flying around the apiary. Blasting them halfway to the other side of the field is a poor way to thank them for all their hard work over the last few weeks.

I described the Porter bee escape as a ‘sort of’ one way valve. That’s because they don’t always work dependably. Big fat drones (why were they in the supers anyway?) get stuck, they get jammed with propolis and they’re very inefficient.

Clearer boards

Clearer boards …

I use a simple clearer board with no moving parts, two large ‘entrances’ and two very small ‘exits’. These clear a stack of supers overnight.

I don’t have enough for all my hives 2 so clear a few at a time.

I stack the supers on top of my honey warming cabinet set at 34°C. This delays crystallisation 3 and significantly improves the efficiency of extraction as the honey flows much more easily.

Honey filled supers

Honey filled supers …

Before leaving the subject of clearing supers it’s worth remembering that colonies can get a bit tetchy once the flow is over. Don’t be surprised if they don’t thank you for pinching all their hard earned stores.

In addition, it is very important to avoid spilling honey from broken comb or exposing colonies – particularly weak ones – which may induce robbing.

I prefer to  add the clearers in good weather and then remove the supers in poor weather the following day, or early or late the next day. Both ensure that there are fewer bees about.

Local honey

I get a lot of requests for ‘local honey’. Many of these are to alleviate or prevent hay fever. This is based on the belief that the pollen in honey primes the immune system and prevents the adverse responses seen in hay fever.

Despite the lack of scientific evidence supporting any beneficial effect, the repeated anecdotal evidence is reassuring … and certainly helps honey sales 😉

Le client n’a jamais tort4

And, whether it helps hay fever or not, it certainly tastes good 🙂

I only produce local honey, but am regularly asked for more details.

Where do the bees forage? How far do they fly?

What is local anyway?

British?

Scottish?

Fife?

Certainly not the first two, even if we do all now live in the global village 5Local means ‘the neighbourhood’ or a particular area.

Area, of course, isn’t defined.

It might not even mean Fife. The honey produced from the town gardens in St Andrews or Dunfermline will be different from the honey produced from the small villages in the flat agricultural land of the Howe of Fife.

Fife and Kinross Shires Civil Parish map

And the honey produced in the spring is very different from summer honey, or in different years.

There’s a lot of interest in eating locally produced food. Just consider the millions of posts using the hashtags #eatlocal on Twitter or Instagram.

Artisan shops that sell local produce tend to sell it at a significant premium. That’s something worth remembering 😉 Customers are prepared to pay more because they know something about the provenance of the produce, or they want to be reassured it has not been transported half way across the globe.

For those who want more information about ‘local’ honey, it would be good to be able to provide it – even if they purchase it in a shop 6. For those who don’t, who aren’t interested, or who just want to spread it thickly on toast 7 then the information is superfluous and should not spoil the appearance of the jar or label.

I’ve been toying with solutions to this over the last couple of years. It provides a bee-related diversion during the long winter evenings.

Some of the commercial Manuka honey producers already have a labelling system that incorporates links to this sort of additional information. With a bit of interweb geekery, a suitable server and a functioning broadband connection it should be relatively straightforward to engineer.

Watch this space …

But for the moment this will have to wait … I have honey supers to collect and no functioning broadband 🙁


 

Off again, on again …

The title of this post could refer to the 2019 season, queen mating, forage availability and the honey supers.

And does …

All are, of course, related to the local weather.

This is my fourth year back in Scotland keeping bees and the season started really well. Scout bees were examining my bait hives by late April and I hived my first swarm on the last day of that month.

Fanning bees

Fanning bees

April had been a good month and overwintered colonies were consequently in pretty good shape and had built up well to (hopefully) exploit the early season forage. Overwintered nucs looked particularly strong …

Here's one I prepared earlier

Here’s one I prepared earlier

The oil seed rape (OSR) appeared as expected – there’s quite a bit in range of both my main apiaries – and the bees started hammering it.

And then the weather reverted to ‘about average’ … which for my part of eastern Scotland in May is a mean maximum daily temperature of 12-14°C. With these lower temperatures came higher than average rainfall.

Nothing dramatic, but enough to – literally – put the dampeners on the first half of the season.

June gap

May segued into June and the OSR came and went. Work commitments kept me away from the apiary which meant the clearers went on about a week later than intended.

Unfortunately this was a week in which the weather deteriorated and strong colonies were stuck ‘indoors’ where they had little to do but scoff the stores. And when they could get out there was a shortage of forage – we’ve had a proper ‘June gap‘ this year 1.

Nevertheless, after extracting I managed just shy of 50% of the total from last spring (which was an exceptional year) so I’m not complaining.

One thing notable about this season was that the majority of the supers extracted were not fully capped. Some weren’t capped at all. I’d left a few ‘drippy’ supers behind and every frame extracted passed the ‘shake test’.

(Very) partially capped honey super frame ...

(Very) partially capped honey super frame …

After extraction I always check the water content of every bucket and it was all in the 16-17.5% region … no different from capped spring honey extracted in previous years.

Wheely good extraction

I’ve finally got round to mounting my SAF Natura 9 frame radial extractor on castors 2. I re-drilled the end of the three legs to accept an M10 bolt and then fitted castors with a couple of nuts, one of which was nylon-lined so it should not work loose.

Rubber-wheeled castor with brake

Two of the castors are braked, but they don’t need to be.

The castors make it a lot easier to move the extractor from storage to my extracting room 3 or to the area where I hose it out after use.

No more jiggling

But much more significantly (and the reason I fitted them in the first place) they prevent a poorly balanced extractor from ‘walking’ across the room if unbalanced and unattended.

I no longer have to cling on for dear life until the machine stops jiggling about 🙂

Of course, I always try and balance my extractor. However, the reality is that you sometimes get frames with crystallised honey which unbalance the extractor late in the run. Or runs in which no amount of juggling of the frames achieves a really satisfactory balance.

Under these circumstances the wheels allow the unbalanced extractor to oscillate from side to side rather than march off down the room.

Adding the little rubber wheels has been a revolution in my extracting if you’ll excuse the lousy pun.

… and away again

Summer has now officially started as the longest day has – like the OSR – been and gone. Today we’ve had rain, thunder and lightning i.e.  a typical summer day and almost perfect conditions to return a towering stack of wet supers to the hives.

The bees were not impressed to be disturbed 4 but were grateful for the wet supers. By dealing with these in the late afternoon on a manky day I avoided the bees getting overexcited and triggering robbing.

It’s clear that the June gap is, if not over then certainly drawing to a close. All colonies have fresh nectar stored in the brood frames and the supers in strong colonies are starting to get heavier.

The rain might even help get a good crop from the lime this year (it was far too dry last season) but we need high temperatures as well.

With a bit of good fortune we’ll also now get some good enough weather for queen mating which has been really hit and miss for the last month.

Where did they come from?

Clearly there are some queens getting reared.

I was called out to a swarm in a neighbours garden late in the afternoon a few days ago. It had been in a low bush for a few hours and was a doddle to drop into a Paynes poly nuc. I’ve yet to see the queen so don’t know whether she’s mated or marked.

What’s puzzling is where the bees swarmed from …

My understanding is that the classic football-sized ball of bees hanging from a branch is a temporary bivouac. The swarm sets up camp there while the scouts do their scouting around looking for a better location to make a permanent residence.

Swarm of bees

Swarm of bees

In my experience the bivouacked bees are usually only a short distance from their original location. By ‘short distance’ I mean 5 to 50 metres. Perhaps 100 at the outside. You don’t just find them randomly dotted around the countryside 5.

Which is what’s odd … the closest apiary to the swarm is mine (perhaps 500 metres away). I’d inspected my colonies the same afternoon. All the queens were present and correct. All are marked and clipped. None of the colonies showed any sign of wanting to swarm 6. It’s definitely not from my colonies.

My village is very small. I don’t know everyone but I know someone who does. There are no other beekeepers here. So where did they come from?

Perhaps they were a swarm from a distant colony that failed to reach their intended destination (like one of my bait hives which had been getting some attention 7). Alternatively they might come from a nearby feral colony.

I’m off to take a closer look at the church tower …


Colophon

The title of this post is truncated from the start of the chorus of a 1921 song by E.R. Edson about a train conductor (Flanagan) and a derailed train … “Off again, on again, gone again, Flanagan”.

In praise of the 1lb round

If you go to any of the big supermarkets you will find shelf after shelf of honey for sale.

There are two things that I used to find surprising about this sort of honey.

It’s usually cheap. For example, Aldi’s Everyday Essentials honey is 99p for 340g, Lidl’s Highgate Fayre clear honey is £1.15 for 454g and Sainsbury’s Clear honey is £1.25 for 340g.

I suspect that none of this honey is produced in the UK, though they might be packaged here – an important distinction. All will have the weasel words ‘Produce of EU and non-EU countries’ in very small letters on the label.

Absolutely anywhere

Anyone with even a passing understanding of geography will appreciate that these words mean the honey comes from absolutely anywhere.

Which probably means China. 

China is the biggest global honey exporter by metric tonne. The EU imports 200,000 tonnes of honey per year, 40% of which comes from China … hence Produce of EU and non-EU countries’.

I’m sure these honeys are actually honey 1 but I’d be surprised if it is particularly good honey.

I’m sure it tastes sweet.

But that’s about it.

A triumph of style over substance

The other thing that used to surprise me about supermarket honey was the appearance.

It’s usually reasonably nicely packaged and labelled. The jar contents look uniform and doesn’t change appreciably over time. Foe example, if you leave a jar it at the back of the cupboard for 6 months it will usually look exactly the same when you rediscover it.

It will also look exactly the same if you return to buy a second jar.

It’s made like that.

During processing it has been prepared to remain attractive and unchanged just in case it doesn’t sell in the first few days or weeks of going onto the supermarket shelf.

Jar after jar looks exactly the same and will remain doing so for a long time.

This in itself isn’t an issue until you realise that the processing and packaging of the honey has probably involved all sorts of filtering and/or heating 2. This is done to achieve consistency in appearance and to retain this appearance on the shelf.

For comparison … the current wholesale bulk price for UK-produced floral honey is over £3 a pound, and heather honey is more than £4. That’s 3-4 times more than the supermarket honeys listed above before jarring, labelling, transporting and markup.

First impressions last

If you sell honey it’s worth remembering that some potential customers will have only seen these cheap inexpensive offerings from the supermarkets.

That is the competition. That’s the standard against which your honey will probably be judged.

Madness of course as honey is meant for eating and it should be judged primarily, if not exclusively, on flavour 3.

So what are these potential customers judging?

Appearance and (usually) price.

Or price and then appearance 4.

A wildly high (or low 5) price or an unappealing appearance will kill the potential sale.

If the label is unattractive, the jar is ugly, the lid is dented, the honey unevenly crystallised or frosting badly, or – horror – there are legs or antennae visible in suspension … they’ll reach for a jar on a different shelf.

Taste tests

If you sell ‘from the gate’ you can offer samples for a taste test. This is usually enough to secure a sale, even if the appearance is sub-optimal or the price unrealistic.

Testing, testing

However, if you are selling via a third party you don’t have this luxury (but you do save a lot of time having interesting conversations about the declining numbers of bees 6, different honey types, whether the honey is raw, bumble bees, hay fever, the weather etc.).

You have control over the appearance of the honey but perhaps only limited control over the price (because of the seller’s markup). The appearance must be good and the price needs to be realistic 7.

Price

The price you charge for your honey is influenced by a swathe of different factors:

  • type and preparation – heather, mono floral, clear, soft set
  • cost of materials – foundation, frames, jars, labels, miticides
  • how you value your time used when preparing the honey (and don’t forget the 7-day inspections, the swarm control, the heavy lifting, the petrol, the colonies lost to disease or failed queen mating … and perhaps even all those jars given away to family and friends!)
  • level of local competition
  • affluence of customers
  • etc.

Just remember those bulk prices I quoted earlier.

By the time you’ve added the price of the jar and lid, the label, and the time spent bottling and delivering it, the wholesale price for a good-looking jar of high-quality local artisan-produced honey should be substantially  higher.

I’ll say that again for emphasis … substantially.

Locally produced honey should be a quality product and should sell at a premium price.

Over the last decade there appears to have been a switch by many beekeepers from 1 lb (454 g) jars to 12 oz (340 g) jars. The acceptability of the price ‘on the shelf’ will be one factor that has influenced this. What was £5 a pound in 2009 is rapidly nudging towards a tenner. This may be too steep for some customers.

But the 1 lb jar still has lots going for it.

Labels and contents

There are three things that influence the appearance of a jar of honey.

  • the contents
  • the labelling
  • the jar

As the producer you have full control over these things.

If you are selling honey you presumably have a fair idea of what the honey should look like. Soft set (creamed) honey should be smooth and uniform, a consistent colour and with little or no evidence of frosting on the inside of the jar. Clear honey should be clear, ‘sparkly‘, with no specks of wax, bee wings or mouse droppings visible 8.

The label design involves an interesting mix of regulations and creativity. There are a whole lot of rules to follow on the words, weights and traceability that must be included.

After that you can use your artistic skills.

Dymo LabelWriter design and printing

My labels are a minimalist. They are simple black on white home-printed labels that don’t obscure too much of the jar. I want the customer to see the honey. They are inexpensive to produce, straightforward to apply, easy-peel, non-smearing and can be printed in batches of one to one thousand.

Which, finally, brings me to the jar itself …

Rounds, hexes and squares

Artisan honey?

A premium product should be presented in good quality packaging.

This probably isn’t a squeezy bear.

Just sayin’ 😉

You don’t have to sell honey by any particular set weight. You can package your honey in glass jars, plastic jars, snap-lid polythene containers, Kilner jars, squeezy bears etc.

But glass jars are probably both the most environmentally friendly and what most customers expect a high-quality honey to be packaged in.

So much so that if you asked someone what a honey jar looks like they will almost always describe one of two jar types.

The classic ‘1 lb round’ or a 12 oz hexagonal jar.

 

Jars are not inexpensive. If you pay normal retail prices (excluding carriage) then 1 lb rounds cost ~34p each and 12 oz hex’s cost ~40p. These prices include lids 9.

Honey in these types of jars won’t surprise anyone and will not put any potential customers off. They expect honey to be jarred like that.

But they also won’t stand out on the shelves from all the other jars that are the same size and shape.

For this reason I use square jars. These are easy to label, distinctive, stack and pack well together, provide a good view of the contents and are only marginally more expensive at ~43p for 12 oz.

I’ve not found a source for reasonably priced 1 lb square jars. If you have, please tell me.

Bottling it

Which in a roundabout way brings me to the subject in the title of this post.

Jarring honey, at least at the small scale I do it in, is a time-consuming manual activity. It’s an important part of the entire process as it’s what ensures that the good-looking contents appear at their best in a nice-looking container.

Aside from the label, the contents and the jar size/shape, the final appearance also depends upon these things being put together properly. The label should be centred and straight, not wonky. The honey should be in the jar, not smeared on the inside of the lid and across the screw thread.

12ox hex jar with clear (runny) honey. The Apiarist

12ox hex jar …

The honey should not be full of bubbles (hint, use a honey bucket tipper and you can maximise the honey jarred from a single bucket) and, ideally, there should no bubbles trapped at the ‘shoulder’ of the jar.

Hex jars are often difficult to fill without trapping bubbles at the shoulder. Some jar styles are better than others, it all depends on how the transition from the vertical side to the neck of the jar slopes (compare the jar on the right with the one shown above).

Square jars are easy to fill. This is because there are only four corners and there is a good slope between the face of the jar and the neck, so bubbles are not trapped.

Honey

Honey

And 1 lb rounds are the best of all 🙂

There’s almost no chance of trapping bubbles at the shoulder of the jar because of the gentle curve to the bottle neck. In addition, filling the jar with 1 lb (454 g) of honey leaves almost no visible space above the honey surface once the jar lid is fitted.

The jar looks full 10. Compare the picture below with the square or hex jars above.

The sweet spot ...

The sweet spot …

Where jarring is concerned the 1 lb round has an additional advantage. For each large bucket of honey you have fewer jars to fill and label.

Result 😉

Unbottling it

I sell over 90% of my honey in square jars. However, almost all of the honey for family and home consumption is jarred in 1 lb rounds.

For two reasons most of the latter is soft set honey; a) the majority of customers want clear honey and b) I prefer it.

And this is where the 1 lb round really excels …

Easy access

… there are no corners 🙂

With a little perseverance and a suitably sized teaspoon you can get almost all of the honey out of the jar.

Easy to fill and easy to empty. What’s not to like?


 

 

The hairdryer treatment

I must be missing a couple of fingers. When I wrote the last post on hive and queen numbering I counted off the days to the end of this week, scheduled the post and was then quite surprised when it appeared on Wednesday.

D’oh!

That Friday feeling

That’s spoilt the pattern a bit.

To get back on schedule here’s a note about the well-known trick to revitalise foundation 1.

Frames and foundation

It’s the time of the season when many beekeepers will be running out of frames as they try and keep up with splits and swarming.

It’s sometimes difficult to get new foundation precisely when you need it. The suppliers sell out or delivery takes a week and you need it that afternoon 2. I therefore usually buy in bulk and store it somewhere cool and flat.

If you look after it properly foundation lasts for ages. Don’t go piling things on top of the stack and try not to damage the fragile edges. However, over time it becomes brittle and develops a pale waxy bloom on the surface. It also loses that lovely ‘new foundation’ smell.

The bees draw out this old rather tired foundation appreciably less well than they do new fragrant sheets. In my experience this is particularly noticeable in supers.

However, a few seconds with a hairdryer on a medium setting quickly restores the foundation to its original state.

Revitalising foundation

Don’t overheat it. The sheet will bow slightly as it is warmed. Treat both sides to try and keep it as flat as possible. The foundation will become slightly translucent and regains that lovely ‘new foundation’ smell as oils are released from the warmed wax.

It’s easier to do this once the foundation is fitted in the frame. However, old, brittle foundation is less easy to work with when you’re making up frames in the first place.

Or you could use foundationless frames 😉

Your call.


Colophon

The phrase ‘hairdryer treatment’ is most often associated with the last but one, two, three, four 3 managers of Manchester United FC, Sir Alex Ferguson. The BBC’s Learning English website describes it very well … When Sir Alex Ferguson was angry with his players, he shouted at them with such force, it was like having a hairdryer switched on in their faces.

Since I’m interested in etymology 4 and not football I’ve no idea what prompted the rise in use of the term in May 2013, visualised below on Google Trends.

Hairdryer treatment – Google Trends

Perhaps the May 2013 peak wasn’t Fergie or football at all … perhaps it was a flurry of articles on restoring old wax foundation 😉

Winter chores

After two weeks of mites, their diets and pedantry we’ll take a break this week for some practical beekeeping.

Or at least as close as you can get to practical beekeeping when it’s been as cold as -8°C.

Midwinter is a time to prepare for the season ahead, to stock up on new equipment during the winter sales, build more frames, plan the strategy for swarm control and think about stock improvement.

And – if you’re anything like as disorganised as me – it’s also the time to tidy up after the season just finished.

Which is what we’ll deal with today.

Tidy the shed

The original research apiary and bee shed is now under an access road for a new school. Fortunately, we managed to rescue the shed which has now been re-assembled in the new apiary.

In the longer term these sheds could together accommodate at least a dozen full colonies. However, in the shorter term it has allowed me to rationalise the storage, giving much more space to work with the colonies in the larger shed.

Supers and brood in the storage shed have all been tidied (see below) and are in labelled stacks ready to use. The other side of the store contains stacks of floors, split boards, clearers and roofs.

It’ll get messier as the season progresses, but it’s a good start.

I also spent a couple of weekends making some minor improvements to the bee shed following the experience last season.

The lighting has been increased and repositioned so it is ‘over the shoulder’ when doing inspections. On a dull winter day it is dazzlingly bright 1 but I fear it will still not be enough. I’m looking at creating some reflectors to direct the light better.

I’ve also used a few tubes of exterior sealant to block up all the holes and cracks around the edge of the shed roof. Last season was a bad one for wasps and we were plagued with the little stripy blighters.

Tidy the frames

Two of the most valuable resources a beekeeper has are drawn super frames and capped stores in brood frames.

Look after them!

I often end up uniting colonies late in the season, but then overwinter the bees in a single brood box. This means I can end up with spare frames of sealed stores. These should be protected from wax moth and mice (or anything else) as they are really useful the following year for boosting colonies that are light on stores or making up nucs.

Drawn supers can be used time and time again, year after year. They also need to be protected but – if your extraction is as chaotic as mine – they also usually need to be tidied up so they are ready for the following season.

I load my extractor to balance it properly, rather than just super by super. Inevitably this means the extracted frames are all mixed up. Since frames are also often drawn out unevenly this leaves me with a 250 piece jigsaw with billions of possible permutations, but only a few correct solutions.

Little and large - untidy frames and a breadknife

Little and large – untidy frames and a breadknife

And that’s ignoring all the frames with brace comb that accumulate during a good flow.

So, in midwinter I tidy up all the cleared super frames, levelling off the worst of the waviness with a sharp breadknife, removing the brace comb, scraping down the top bar and arranging them – 9 to 11 at a time 2 – in supers stored neatly in covered stacks.

And, if you’ve got a lot, label them so you know what’s where.

An hour or two of work on a dingy midwinter day can help avoid those irritating moments when – in the middle of a strong flow – you grab a super to find it contains just five ill-fitting frames, one of which has a broken lug.

The wax removed during this tidying up is usually lovely and white. Save it for making soaps, cosmetics or top-quality candles.

Wax extraction

Brood comb has a finite life. After about three years of repeated brood rearing cycles it should be replaced. Old comb contains relatively little wax but what’s there can be recovered using a solar or steam wax extractor. This also allows the cleaned frames to be re-used.

Processing a few dozen brood frames with a solar wax extractor during a Scottish winter is an exercise in futility. For years I’ve used a DIY steam wax extractor which worked pretty well but was starting to fall apart. I therefore recently took advantage of the winter sales and purchased a Thorne’s Easi-steam 3.

The Easi-steam works well and with a little further processing generates a few kilograms of wax for making firelighters or trading in … and a large stack of frames for re-use.

Remember to keep a few old dark brood frames aside for using in bait hives

Keep an eye on your bees

In between all these winter chores don’t forget to check on your bees.

There’s not a lot to do, but these checks are important.

Make sure the entrances are clear, that the mouse guards 4 are in place and that the roofs are secure.

Storm Eric brought us 50-60 mph winds and a couple of my hives lost their roofs. These had survived a couple of previous storms, but the wind was from a different direction and lifted the roofs and the bricks stacked on top. I got to them the following day but we’ll have to wait until the season warms up to determine if there’s any harm done.

Fondant top up

Fondant top up

Finally, as the days lengthen and it gets marginally warmer colonies should have started rearing brood again. Make sure they have sufficient stores by regularly ‘hefting‘ the hive. If stores are low, top them up with a block or two of fondant. This should be placed directly over the cluster, either over a hole in the crownboard or on the top bars of the frames.


 

Making mead

Every year, usually around Christmas, I make a batch of mead.

About a year later I bottle the mead and leave it to mature.

A year or more later I start drinking the mead … if it’s drinkable 😉

If at first you don’t succeed …

The last couple of batches have been, if not spectacular, certainly very drinkable.

I expect them to improve further with age 1 and so have tucked them away for special occasions over the next 12-18 months … or longer 2.

Clearly this isn’t a quick process.

The early batches I made were pretty rough. Some were ditched at – or rather just before – bottling. However, I’ve now settled on a recipe (which means found … I claim no originality for it) that has worked well for at least three batches in a row.

Here it is.

Equipment

You’ll need a small amount of equipment, all of which is readily available from a brewing and winemaking store. I’ve used Hop and Grape, but there is lots of choice online. In England, Wilkinsons is also a good source of inexpensive brewing supplies.

  • Demijohn
  • Airlock
  • Rubber bung
  • Siphon (or simple piece of tubing)
  • Bottles
  • Good sized saucepan
  • Funnel
Ready for fermentation ...

Ready for fermentation …

Recipe

  • ~4lb of well-flavoured honey
  • 1 mug of cold tea
  • 1 teaspoon of citric acid
  • 1 teaspoon of yeast nutrients
  • 5g of good quality white wine yeast. I’ve had the most success with Lalvin D47.
  • 5 litres of still bottled water
Fermenting mead ...

Fermenting mead …

Preparation

  1. Prepare a mug of tea. Use boiling water and one tea bag, leave it to go cold and discard the tea bag. While it’s cooling prepare the yeast starter and sterilise everything.
  2. Add the yeast to a clean glass containing 100ml or so (quantity isn’t critical) of warm water at ~40°C. Stir to disperse the yeast and leave at room temperature to rehydrate.
  3. Add the honey to the saucepan and add about 2 pints of water. Warm over a gentle heat, stirring regularly to completely dissolve the honey. It doesn’t need to get hotter than ‘hand hot’. Once the honey is completely dissolved take the saucepan off the heat and allow to cool. While that’s happening prepare the demijohn.
  4. Thoroughly sterilise a demijohn. I use crushed Campden tablets as I’m ‘old skool’, there are probably newer and better ways to do this now. At the same time sterilise a rubber bung for the demijohn, a funnel and an airlock. Rinse the cleaned demijohn very well (tap water) and then add ~1 pint of bottled water.
  5. To this demijohn, using the funnel, add the honey mix, the cold tea, citric acid and the yeast nutrients. The temperature should now be around 30°C.
  6. Add the yeast starter. There will still be a considerable volume of the demijohn still empty (see the image above).
  7. Add the bung and, holding the bung tightly in place, shake the demijohn very vigorously.
  8. More, shake it some more. I don’t know if it really helps, but it feels like you’re doing something important and constructive 😉
  9. Replace the bung with an airlock part-filled with bottled water.
  10. Place the demijohn somewhere out of the way to ferment. The temperature (at least for Lalvin D47) needs to be 15-20°C but not any higher or it can produce ‘off’ flavours. I wrap the demijohn in bubble wrap or old blankets to help keep the temperature stable 3. It needs to be out of the way as you don’t want to move it and disturb things during fermentation.
  11. Bubbles will start in 6-18 hours. Initial fermentation can be very vigorous which is why lots of headspace was left at the beginning.
  12. After 48-72 hours fermentation will have steadied to about one bubble every few seconds. The sound is hypnotic 🙂 Once fermentation has steadied remove the airlock, top up with water to within 1″ of the neck of the demijohn and replace the airlock.
  13. Let fermentation continue. After 2-3 months fermentation will have almost or completely stopped. The demijohn will have a thick layer of yeast settled at the bottom of the bottle.
  14. Avoiding the yeast layer, siphon the mead into a new, sterilised demijohn. Don’t disturb the yeast layer … don’t worry about not getting every last drop out of the demijohn.
  15. Top up the new demijohn with ~1:3 w/w honey in warm water (i.e. 227g of honey dissolved in 750ml of water). Replace the airlock. Fermentation will start again.
  16. Once fermentation has completely finished – this takes a variable length of time – the mead should be crystal clear 4.
  17. Bottle the mead. Test it (of course!) and leave it somewhere dark and cool to mature for several months.

Additional notes and comments

Mead

Mead

This is a very basic guide to making mead. That’s because, despite making it for a few years, I’m still very much a beginner. There are hundreds of guides and at least as many recipes online. Read a few, but then just have a go … don’t get bogged down in the minutiae. If you can’t find Lalvin D47 use generic white wine yeast.

Use well-flavoured honey. Don’t use something bland or insipid. Many people use heather honey for mead though the best batches I’ve made have always been with a good midsummer mixed floral honey.

Using the recipe above the last few batches have cleared perfectly. One or two early attempts remained cloudy after racking it off and I remedied this by adding a bit of bentonite.

I’m a bit of a heathen and usually use 500ml “Grolsch-type” bottles, which are more properly termed swing-top bottles. If you’re intending to compete in your association annual honey show make sure you use the correct type of bottle … which will not be a swing top 😉

Whatever bottle style you use make sure it is made of clear glass … you want the lovely golden amber colour of the mead to shine through.

I’ve no idea of the alcohol content as I’ve lost my hygrometer. Lalvin D47 can tolerate 14-16% alcohol which gives you an idea of the upper limit it will reach.

I know the stuff I’ve made is reasonably potent. Test your mead in moderation. If you like the flavour I’d recommend NOT guzzling the entire bottle in one sitting … particularly if you use standard volume (75cl) wine bottles 5.

Remember that you can’t sell alcohol without a licence.

Drink it with friends and sell them lots of honey when their defences are lowered 😉

Have fun


 

 

Flour water salt yeast

FWSY

FWSY

Prompted by the first hard frosts of the year and the end of the beekeeping season, here’s a post that is of only peripheral relevance to beekeeping.

Though since you presumably prefer to eat honey on something, rather than on its own, it’s not completely irrelevant.

Almost two years ago I wrote a post about breadmaking. In the intervening period I’ve baked a lot more bread … probably over 100 loaves. Almost exclusively I’ve been working from an outstanding book by Ken Forkish entitled Flour water salt yeast.

Forkish is an artisan baker from Portland, Oregon. The book, and his YouTube videos that accompany it are an excellent introduction to simple, easy and quick 1 methods for producing truly spectacular homemade bread.

Like this …

Overnight white loaf

Overnight white loaf

Matthew 4:4

Man cannot live by bread alone … well, I’m not so sure.

This bread is really good.

The general principles promoted by Forkish are:

  • Use high quality ingredients
  • Carefully control temperatures and timings
  • Use minimal amounts of mixing
  • Use small amounts of yeast and long rise periods
  • Bake in a very hot oven in a container to seal in the steam

Forkish earns his living writing and baking, so I’m not going to reproduce his recipes here – buy the book (or look for them online as some people have splurged them all over the internet).

What I will do is qualify some of points in the list above. Hopefully this will encourage you to have a go as well (and to learn from the few mistakes I made by either trying to cut corners or not reading the instructions).

Ingredients and environment

The flour you use has a big influence on the characteristics of the dough. I almost always use Bacheldre organic stoneground flours. These are strong, absorb water well and have a high protein content. They’re available direct from Bacheldre Mill and lots of places online. In my experience, the own-brand ‘strong bread flour’ sold by most of the supermarkets make a much sloppier dough than the Bacheldre flours. The resulting bread isn’t necessarily worse, but the dough is a lot harder to work with as it’s always trying to escape.

I use a thermometer to check the water temperature at the start. This ensures a uniform early development of the dough. I also check the temperature of the place I’m going to allow the dough to develop. If it’s much warmer or cooler than expected you might need to modify timings.

Mix, leave, mix, leave, mix …

One of the attractions of the breadmaking method promoted by Ken Forkish is that it involves very little work. For a standard loaf it probably takes no more than 8 minutes of mixing in total, in four blocks. And that includes rinsing your hands before and after working the dough.

All of the mixing is done in a large container.

A 30lb honey bucket is ideal.

How convenient 🙂

The flour and water are premixed to make an autolyse. This is allowed to sit for 20-30 minutes before adding the yeast and salt. Most of the recipes use very small amounts of yeast (much less than a gram for a 500g loaf) so the small, accurate scales used for weighing your oxalic acid (er, Api-Bioxal) are ideal.

After mixing the dough is allowed to develop with a further 2-3 quick ‘turns’ in the first 90 minutes or so. These ‘turns’ aren’t even really mixing. You just fold the dough over two or three times. It takes as long to write it as it takes to do it.

Then leave it overnight.

Cooking on gas

The following morning you turn the dough out, shape the loaf and allow it a final rise while the oven heats to a ‘serious-risk-of-burning-if-you-touch-anything-without-very-thick-oven-gloves-on’ 240°C 2.

As well as preheating the oven you also preheat the container you’ll cook the bread in. I use a Lodge 3 litre cast iron Combo Cooker (or Dutch Oven for convenience). These are $56 in the USA, or an uncompetitive £90 in the UK.

I was robbed 🙁

However, I then checked out the Le Creuset prices and felt a whole lot better 🙂

Any heat-retaining covered ovenproof container should be suitable. Cast iron is probably best. The goal is to trap the steam inside while the bread cooks to give the crisp crust. As an alternative to the Lodge Dutch Oven I’ve also used a large Pyrex ‘chicken brick’ which work almost as well.

Cooking takes 30 minutes with a further 15 minutes uncovered to crisp up the crust.

You can of course use an electric oven 😉

Overnight 20% wholemeal loaf

Overnight 20% wholemeal loaf

Quick and easy

From start to finish a loaf takes about 16-18 hours.

Not quick.

However, during that period you’re only actually handling the dough for about 10 minutes. Almost all the time is a long overnight rise period while the yeast works its magic 3.

So … very easy.

The proof of the pudding

The resulting loaf tastes excellent, with a very crispy crust and wonderfully textured crumb. Since the yeast has worked hard overnight the crumb is full of large holes (which conveniently fill with honey or butter or marmalade). Assuming it’s not devoured when still warm it keeps well. If anything, the loaf improves if allowed to cool properly before scoffing 4. Once cold, just wrap it up in a plastic bag and you can use it up to 48 hours later, or perhaps longer as toast … though it never lasts that long in our house.

Final notes

The book Flour water salt yeast has about a dozen different bread recipes. Almost all use essentially the same steps I’ve outlined above. Some use an overnight starter (a biga or poolish) and these take a little bit more work, and a bit more time. Actually, with the exception of the ingredients, quite a bit of the book is rather repetitive as the mixing and cooking instructions are essentially the same for all the loaves.

The second part of Flour water salt yeast covers the preparation and use of levains or sourdough starters. These also make great bread, but take more work. With travel and other commitments I can’t always keep the sourdough starter in tip-top condition, so all of the comments here (and for at least half the book) are for loaves made with freeze-dried yeast.

For a standard weekend loaf you can’t go far wrong with a standard overnight white loaf, or a 10-30% overnight wholemeal loaf. These can be started on Friday evening, cooked early on Saturday and enjoyed all weekend.

Forkish explains each of the individual steps in the breadmaking process in a series of short YouTube videos. Of the 11 on his breadmaking 5 YouTube channel, the first 8 are relevant to loaves made without a levain, or sourdough starter. Watch them in sequence, ideally with the book to hand, and you’ll appreciate just how simple the process is.


 

Line ’em up

Honey sold via a third party needs to carry a label with all sorts of information on it 1. A well-labelled jar of honey looks good on the shelves and undoubtedly helps sales.

However, an attractive label does not need to be fancy, printed in colour or expensive to produce. I firmly believe that the contrast between a simple black and white label and the rich golden colour of the honey enhances the appearance of the end product. This helps sales.

Honey

Honey

If you are selling via a shop they are often have more than one type of honey on display. Your honey might well be next to a row of brightly labelled, mass produced (Product of EU and non-EU countries … and we all know what that means), factory packed jars … all looking uniformly – though perhaps blandly – identical.

In contrast you’re selling a top-quality, artisan product that is probably being sold at a premium price.

And if it’s not, it should be.

Artisans and amateurs

Remember that artisan does not mean amateur. It means traditionally produced, high quality and handmade by a skilled tradesman.

Therefore, your honey should not look amateur. If the jar contents look attractive, with no antennae or obvious wax crumbs, and the label is good then the individual jar should be very appealing.

But how do they look half a dozen at a time? All lined up in a row?

If the labels are all higgledy piggledy 2, neither being level on the individual jar or level with its neighbours, then you might not be conveying the impression you want.

Or if you are, you might be able to convey a better impression 😉

Line ’em up

With a steady hand, good lighting and a convenient ‘guide’ it is easy to reproducibly label jar after jar after jar after jar after jar 3 of honey.

I use offcuts of wood laminate flooring as the guide 4. These are available in a range of thicknesses from about 8 to 15mm. For the sizes of jars I use these represent a suitable distance to place place the label from the bottom of the jar.

I ‘offer up’ the label just touching the wood ‘guide’, check that it’s level and centred on the jar, then press it into place with my thumbs.

Labelling honey jars

Labelling honey jars

Four things that help in getting a reproducible finished effect:

  1. Easy peel labels that can be removed and reattached if you get it wrong
  2. Working at a reasonably high table to help with the lateral alignment
  3. Using square rather than round jars
  4. Practice

The square jars really help. More specifically it’s the guide butting up against the side of the jar that helps. If I routinely used round jars I’d cut a semi-circular hole in the edge of the guide – in a choice of sizes reflecting the diameter of the jar – to help align the label.

Once the front label is in place it’s a simple (but repetitive) task to turn the jar around and add the anti-tamper label, unless you’re the type who prefers to ‘trap’ it under the front label … in which case it obviously has to go on first.

Alternative approaches

There was a prize awarded recently at one of the large conventions (perhaps the National Honey Show?) for a lovely handcrafted wooden ‘cradle’ that held the jar and aligned the label. The principle was identical to that described above … just implemented much more elegantly. I thought this was made by Thomas Bickerdike who also produces lovely handcrafted wooden spoons. However, my Google-foo has failed to find it, so if you remember seeing it please post a link below.

Or, for a few hundred pounds, you could buy a labelling machine …


Colophon

Nice to see you ...

Nice to see you …

Line ’em up was a game from US version of the eternally popular game show The Price is Right. Amazingly (have you ever seen it?) this was recently voted the fifth best gameshow of all time.

Extraordinary … but not in a good way.

Mad honey

Attractive ... briefly

Attractive … briefly

Over the next couple of years I will be establishing a new apiary in a region that is currently heavily overgrown with rhododendron. In moderation rhododendron are attractive evergreen ornamental shrubs that flower profusely for a short period in spring.

However, in many areas where rhododendron has been introduced, they have become highly invasive shrubs that have spread widely through seed dispersal and suckering.

As a beekeeper there are some interesting links between rhododendron, bees and honey.

Rhododendron ponticum

The common rhododendron (Rhododendron ponticum) is native to Southern Europe and South West Asia. Although it was probably present in Great Britain before the last Ice Age it only became re-established after the late 18th Century when reintroduced by nurseries for ornamental gardens.

On the west coast, particularly in Snowdonia and western Scotland 1, rhododendron has become highly invasive, covering large areas of land and even entire hillsides. It swamps native trees and the development of understory growth by cutting out any light getting to the ground. In addition it poisons the soil to prevent competition from other plants.

Rhododendron is considered a major problem and grants are available for its removal. Estimated costs for eradication of rhododendron from Snowdonia and Argyll and Bute are £11M and £9.6M respectively 2.

It looks striking when it’s in flower … but for most of the year it just looks green.

Rhododendron ... lots of it

Rhododendron … lots of it

Unless you’ve got acres of the stuff in which case it just looks awful … all the time 😉

Rhododendron, bees and toxins

Rhododendron are insect pollinated and produce large amounts of sugar-rich nectar to ‘reward’ visiting pollinators. A number of species of bees are known to pollinate rhododendron, including honey bees. Surprisingly – for an insect pollinated plant – rhododendron nectar contains high levels of diterpines which are toxic to many different animals. These types of toxins are usually produced by plants to reduce foliar grazing.

The most important (by amount) diterpine in rhododendron nectar is grayanotoxin.

Grayanotoxin is a neurotoxin. It works, i.e. its toxicity is due to, interference with voltage-gated sodium channels (VGSC) in neurones. We’ve discussed VGSC’s before in the context of resistance of Varroa to Apistan.

Although the modes of action of apistan and grayanotoxin are different, the consequences are not. If you block neuronal activity, stuff 3 that’s important often stops working properly – ‘stuff’ like the heart 🙁

Symptoms of grayanotoxin poisoning include cardiovascular problems, nausea, vomiting and loss of consciousness.

But wait, there’s more. Add to that heady mix one or more of the following … blurred vision, dizziness, hypersalivation, perspiration, weakness and paresthesia4 in the extremities and around the mouth.

In higher doses, symptoms can include loss of coordination and severe, progressive, muscular weakness. Fatalities are rare but not unknown.

These are all symptoms in humans experiencing grayanotoxin poisoning.

Great … could it possibly get worse?

Grayanotoxins and honey bees

Recent studies have suggested that grayanotoxins are also toxic for some bees. In these laboratory studies, honey bees fed syrup laced with field-realistic doses of grayanotoxin were twenty-times more likely to die than those fed undoctored syrup 5.

Note that this does not necessarily mean that honey bees foraging in the natural environment are twenty-times more likely to die.

The laboratory experiments effectively ‘force-fed’ bees syrup containing the toxin. Toxicity was monitored 6 hours post feeding. Perhaps they were hungry and, having no choice, ate the stuff 6 and consequently poisoned themselves.

In the natural environment there are probably a wide range of nectars available simultaneously. Perhaps the bees simply change their diet and choose these nectars instead?

I don’t think that this has been formally tested. At least, not yet.

It might be an interesting experiment to conduct. You could set up a feeding station with syrup, train the bees to use this sugar-rich source and then add grayanotoxins to the syrup. If the bees continue to gorge themselves on the toxin-laced syrup (and showed increased mortality) then they presumably either can’t taste the grayanotoxin or can, but don’t care 7.

Alternatively, they might switch away from the toxin-laced syrup and use other plant and tree nectars and, in doing so, not jeopardise their longevity.

Although this experiment hasn’t been conducted, we do have evidence that honey bees forage on nectar from rhododendron.

Mad honey

If bees forage on rhododendron the grayanotoxin-containing nectar would get processed in the hive to create toxin-laced honey 8. Since grayanotoxins are known to be toxic for humans this honey would be expected to exert some adverse, or at least interesting, effects.

And that’s exactly what is seen.

The most common cause of grayanotoxin poisoning in humans is from eating honey made by bees foraging on rhododendron. Small doses cause light-headedness and hallucinations. In large doses it is overtly toxic and induces the range of symptoms described above.

In Nepal and parts of Turkey this so-called ‘mad honey’ is deliberately produced. You can buy mad honey online … a snip at $199 for 250g 9.

As well as causing light headedness and hallucinations, mad honey is consumed – particularly in Turkey – because of its perceived therapeutic benefits for conditions such as diabetes, bowel disorders and hypertension. Perceived because I’m not sure there’s real evidence of benefits for any of these conditions.

Mad honey, or deli bal in Turkish, is also thought to enhance sexual performance 10. Perhaps unsurprisingly, mad honey poisoning is most commonly observed in middle-aged men 😉

The proof of the pudding honey is in the eating

Are Welsh or Scottish bees foraging in rhododendron-infested areas able to produce ‘mad honey’?

I don’t know. I guess I’ll find out. After all … there’s a lot of rhododendron.

Rhododendron ... lots more

Rhododendron … lots more

There are a few disputed reports of honey toxicity case studies in the British Medical Journal. Some are very old and are suggested to actually be caused by fructose intolerance. There is also a reported Scottish case where a man licked rhododendron nectar from his hands and rapidly experienced paraesthesiae (‘pins and needles’), loss of coordination and an inability to stand, symptoms which resolved completely a few hours later 11.

However, I strongly suspect that a range of factors mean that although a beekeeper might be mad to try and produce honey in these areas, he or she would be unable to produce mad honey. Rhododendron blooms relatively early in the season, the climate of the UK and Nepal/Turkey are dramatically different and there are known to be significant strain-specific variations in grayanotoxin production between rhododendron.

On the island of Colonsay – the first black bee reserve – there are extensive tracts of invasive rhododendron and yet Andrew Abrahams, the local beekeeper, produces excellent heather honey there.

In the meantime I’m busy removing rhododendron from my site …


 

Botulism

Do not feed to infants

Do not feed to infants

I was recently asked, Why can’t you give young babies honey?

You can.

But just because you can doesn’t mean you should.

And on this point the NHS guidelines are very clear. You should not give honey to babies under 12 months of age because there is a risk that they might get botulism.

Bacteria, toxins and Botox

Botulism is a serious, sometimes fatal, disease caused by infection with a bacterium called Clostridium botulinum. As it grows, C. botulinum produces neurotoxins which cause a flaccid (floppy) paralysis and can result in respiratory failure. About 5-10% of cases are fatal, but infections thankfully very are rare.

Symptoms include fatigue, weakness, blurred vision and difficulty speaking and swallowing. The paralysis is ‘descending’, generally starting in the head and neck, then moving to the shoulders, arms, chest and lower limbs.

Botulinum toxin

Botulinum toxin

Unusually for a bacterial infection there is no fever. This reflects the fact that there’s probably only limited bacterial growth (which typically induces fever) and the potent neurotoxicity of the botulinum toxin. This toxin stops the release of the neurotransmitter acetylcholine from the nerve endings, thereby causing paralysis.

Botulinum toxin is one of the most acutely lethal toxins known. The lethal dose depends upon the route of administration, but is between 1.3 and 13 ng/kg 1.

Remember, botulinum toxin is the active ingredient in Botox.

No thanks. I’ll stick with the wrinkles 😉

Botulism cases in the UK/Europe

Botulism is a notifiable disease. Consequently, we have good data on the incidence of botulism in the UK and Europe. In 2014 there were 91 confirmed cases in the EU, with 14 cases reported in the UK between 2010 and 2014. Other than injecting drug users, a significant proportion of the cases are in infants – see below.

C. botulinum is widespread in the environment and infection usually occurs by ingestion of improperly prepared food e.g. undercooked or improperly canned foods, in which the bacteria survives.

Clostridium botulinum

Clostridium botulinum

The bacteria grows in the absence of oxygen and produces the toxin during growth. Although the toxin is heat-inactivated if properly cooked (over 85°C), the bacterium also produces heat-resistant spores during growth. These spores can withstand temperatures over 100°C for long periods and usually require both high temperatures and pressures to inactivate them.

As a consequence of this the spores are also very widespread in the environment … cue the Jaws soundtrack … just waiting to encounter the correct conditions to germinate and initiate a new round of bacterial growth (and toxin production).

Botulism cases in children

About a third of all cases of botulism are in the 0-4 age group. I’ve been unable to find a more detailed breakdown by age, but there have been 19 cases of infant (children less than 12 months old) botulism in the UK since 1978.

In many cases of infant botulism the source of the spores is unknown. However, other than well-documented cases of contaminated milk powder, honey is the only food regarded as a significant risk factor. About 60% of cases of infant botulism are in babies with a history of honey consumption 2 and, in several cases, epidemiological follow-up has confirmed that honey was the source of the infection.

Treatment is not with antibiotics as it’s the toxin that causes the symptoms, not the bacteria. Instead patients are treated with immunoglobulin (antibodies) specific for the toxin. These inactivate toxicity fast and recovery is usually complete, but can be protracted.

C. botulinum spores in honey

Oxygen inhibits the growth of C. botulinum. So do acidic conditions. Honey is acidic, with a pH of about 3.9, which is too low for the bacterium to grow. However, the spores remain viable at low  pH. It is this contamination of honey with C. botulinum spores that poses a risk for infants.

It is possible to microbiologically examine honey for contamination with C. botulinum spores. When this has been done, 6-10% of honey samples tested were contaminated, with contamination levels estimated at 5 to 80 spores per gram of honey. The infectious dose for a human is estimated at 10-100 spores 3.

So … much less than one teaspoon of contaminated honey.

Despite this, there is no requirement for honey to carry a label warning that it should not be fed to infants. Instead, the Food Standards Agency recommend honey carries a warning that it is unsuitable for children under one year of age.

Why is infant botulism so rare?

If up to 10% of honey is contaminated with C. botulinum spores, why are there not many more cases of botulism in infants? After all, European paediatricians have even been known  to recommend honey – a long-standing traditional solution – as a means of soothing crying babies4.

The intestine of the developing baby is full of bacteria – the so-called commensal microbiota – all competing to get established and to lead a long, happy and healthy association with their human host. The spores of C. botulinum have to germinate and establish an infection in the face of this competition and, usually, they fail. A likely possibility is that infant botulism only occurs in babies in which the commensal microbiota have not properly developed … either because they are so young, because broad-spectrum antibiotic use has prevented the development of the microbiota or for a pre-existing genetic condition.