Water kefir
Milk kefir
Kombucha
Ginger beer
Kefir duo
Kefir and kombucha
Rennet
Water kefirLive water kefir grainsYour own sparkling lemonade, batch after batch
from £11£36.67 / 100 g
Live cultures, free delivery from £35
Water kefirMilk kefirKombuchaGinger beerFresh cheese
made at home, batch after batch
One pouch, one jar, two minutes a day. Our cultures arrive alive, come from traditional methods and grow with every batch, so there is always something fresh and fizzy waiting in the fridge.
4.8/5 on TrustpilotMore than 20,000 customers
Dispatched within 24 to 48 hours
Water kefir, Best Seller1 litre every 24 hours£11
Kombucha SCOBYWith starter liquid£16
Starter kitYou save £7
Choose your ferment
What would you like to drink tomorrow?
Four live drinks that taste nothing alike, and cheese on top of that. Tap through them.
Best Seller
Water kefir
Fresh, fruity, lightly tart, with a fine sparkle. Water, cane sugar, a dried fig and 24 hours: that is all it asks. Bottle it with strawberries or ginger in a swing-top and you have your own house lemonade, a fresh alternative to shop-bought fizzy drinks. Our number one, and the easiest place to start.
Speed
Ease
Fizz
from £11See details
Milk kefir
Thick, tangy and creamy, a bit like buttermilk with more character. You set it in a jar with ordinary whole milk and it is ready the next morning: on its own, over your porridge, in a smoothie, or in place of buttermilk in scones and pancakes.
Speed
Ease
Creaminess
from £14See details
Kombucha
You already have the tea. A strong breakfast blend, sugar and a week of patience give you a sharp, aromatic drink with a hint of apple that changes with every tea you try. After a second fermentation with raspberries or ginger, you will stop buying bottles.
Speed
Ease
Aroma
£16See details
Ginger beer
Ginger beer the old way: hot, lively and not too sweet. Ginger beer plant, water, sugar and fresh ginger, then 48 hours in a closed bottle, and you have ginger beer that opens with a proper pop.
Speed
Ease
Fizz
£14See details
Cheese at home
A few drops of rennet, good milk and an afternoon: your fresh cheese comes straight out of the mould. With a little more patience you can press a hard cheese too. One 50 ml bottle sets 250 to 500 litres of milk.
Speed
Ease
Value
£13See details
The favourites
What people order most
incl. VAT, plus delivery (free from £35)
Through the week
How it fits your day
Not a hobby that eats your evenings: a jar on the worktop, and it gets on with the job.
Breakfast
Kefir in your porridge oats
Oats and milk kefir in a jar at night, creamy and tangy by morning. Add blueberries or a grated apple and the kettle is the only thing left to switch on.
See the recipe From the allotmentRhubarb, elderflower, lemon
Water kefir sparkles like lemonade, is less sweet and tastes different every week, depending on what the garden or the hedgerow is offering.
See the recipe With the teaApple cake with kefir
Kefir instead of buttermilk keeps the crumb light and moist around the Bramleys. It stays good for days, if it lasts that long.
See the recipe Summer eveningsA barbecue with your own drinks
Homemade ginger beer for an alcohol-free Moscow mule, with a kefir cucumber dip on the side: someone will ask for the recipe, guaranteed.
See the recipeDo the maths
One pouch. Hundreds of litres.
Water kefir grains do not run out, they multiply. Move the slider and see what a single 30 g pouch gives you if you set a litre every day.
How long you keep making kefir6 months
Only the culture is counted: sugar and fruit come on top. Looked after well, the grains keep going for years.
182litres of water kefir
553bottles of 330 ml
6pper litre, for the culture
24 hours
What happens in your jar
Water kefir: set in the morning, ready the next morning.
You set a batch
1 litre of water, 4 tablespoons of cane sugar, a dried fig, a slice of lemon and the grains. Cover with a cloth and walk away.
The first bubbles
Tiny bubbles rise from the grains. The culture is awake.
The fig floats up
A sign that the fermentation is going well. The water turns cloudy.
Into the bottle
Strain, bottle with fruit in a swing-top and set the next batch straight away. Your first litre is done.
Why order from us
Cultures that work the first time
Tesco, Sainsbury's, Waitrose, Asda and M&S sell kefir and kombucha in bottles; here you get the live culture itself, so you can make your own, batch after batch.
Traditional methods
Our cultures come from traditional methods: unique and vigorous. They start strongly from the first batch and forgive the small slips of the first few days.
20,000+
Customers already fermenting at home
Rated 4.8 out of 5 on Trustpilot, from verified reviews.
Dispatched within 24 to 48 hours, delivered alive
In their own liquid, in a well-sealed pouch, with Royal Mail handling the last leg. Standard tracked delivery is £4.90 and free from £35; express tracked delivery is £14.90.
Clear prices, VAT included
Every price is in pounds sterling with VAT included, and the delivery charge shows in your basket before you pay.
A clear guide, and a team that answers
Quantities, times and the signs to watch for, without the jargon. Stuck? Send us a photo of your jar and you will hear back within one working day.
Satisfaction guarantee
If your culture does not get going when you follow the guide, we will sort it out with you.
Sets
More cultures, lower price
Better value together, and the starter kit alone passes £35, so standard tracked delivery is free.
Set
Complete fermentation starter kit
Water kefir 30 g + Milk kefir 20 g + Kombucha. All three cultures, at the best price.
You save £7 compared with buying separately
£40
incl. VAT, plus delivery (free from £35)
incl. VAT, plus delivery (free from £35)
In 20 seconds
Not sure where to start?
Two questions, and we will tell you which ferment suits you and how much to order.
Real reviews
More than 20,000 customers already ferment at home
What our customers say, exactly as they posted it on Trustpilot.
Great client service
Great client service I ordered kombucha SCOBY and water kefir grains and when the package arrived, a part of the kefir was missing. Client service was very quick at sending me the missing item. Both grains and SCOBY are producing great drinks.
Juliette MaysReview on TrustpilotExcellent service and fantastic culture kits!Highly recommended! I recently purchased the culture kits for both water kefir and kombucha, and I couldn’t be happier! The package arrived right on time and was packed with so much care. To be honest, I was a bit nervous at first, but the instructions are incredibly clear, thorough, and easy to follow (the included booklet is an amazing guide if you're a beginner like me!). Both cultures worked perfectly on the very first try, and the drinks taste absolutely delicious.
ElisaReview on TrustpilotGreat brandGreat brand
Michail PalierakisReview on TrustpilotFast shippingFast shipping. The product is superb.
Elli SuiReview on TrustpilotLearn
Guides to get it right the first time
Complete guide
Water kefir
Setting a batch, the second fermentation with fruit, caring for the grains and what to do when it will not fizz.
Read the guide Complete guideMilk kefir
The right milk, the timings, the texture, and what to do with all that kefir once the grains get going.
Read the guide Complete guideKombucha
Tea, sugar, brewing time, the second fermentation and a SCOBY hotel for your spares.
Read the guideQuestions
Before you order
How long does delivery take?
Your order leaves within 24 to 48 working hours. Standard tracked delivery takes 3 to 6 working days anywhere in the UK and costs £4.90, free from £35. Express tracked delivery takes 3 to 5 working days and costs £14.90. In both cases Royal Mail handles the last leg.
Do the cultures arrive alive?
Yes. They travel in their own liquid, in well-sealed pouches made for the post, and they become active in the first batch.
Is it difficult?
Not at all. If you can stir sugar into a jug of water, you can make water kefir. The guide takes you through it batch by batch, and you can always e-mail us with a question.
How long do the cultures last?
Years, if you feed them regularly. They grow as they go, so you can make more, or pass your surplus on to someone in the family.
How can I pay?
By Visa or Mastercard, debit or credit, with Apple Pay or Google Pay, with PayPal, or with Klarna if you would rather pay in 3, all on a secure payment page. All prices include VAT.
Set
All three cultures, at the best price
Water kefir grains (30 g), milk kefir grains (20 g) and a kombucha SCOBY in one order, each with its guide. Three living drinks for your kitchen, for less than buying them separately.
£40incl. VAT, plus delivery (free from £35)