Water kefir
Milk kefir
Kombucha
Ginger beer
Kefir and kombucha
Starter kit
Rennet
Water kefirLive water kefir grainsYour own sparkling lemonade, batch after batch
from £11£36.67 / 100 g
Live milk kefir grains
4.8/5 on Trustpilot, more than 20,000 customers
Live milk kefir grains that set to work in your first jar of milk. With 10 g you make half a litre a day, with 20 g a litre. They grow with every batch and last for years with simple care.
- Live grains, sent in milk
- Half a litre a day with 10 g, 1 litre with 20 g
- Works with ordinary whole milk from the shop
- Step-by-step guide and recipes included
Quantity
Dispatched within 24 to 48 hours on working days
Free delivery from £35
Free delivery from £35
We help until it works
Step-by-step guide included
Real people in customer service
What you get
- 10 g or 20 g of live milk kefir grains.
- A well-sealed pouch, made for the post.
- The step-by-step guide: quantities, timings and how to recognise a good batch.
- Our online recipe collection, from smoothies to strained kefir cheese.
How to start a batch
- Put 20 g of grains into 1 litre of whole milk (10 g into half a litre).
- Cover the jar with a cloth.
- Leave it for 24 hours at 20 to 25°C, strain, and put the grains into fresh milk.
Storing the grains
Don't need kefir for a few days? Put the grains in fresh milk in the fridge. The cold slows them right down and they'll wait for up to a week. One or two normal batches afterwards and they're back in their rhythm. More in caring for milk kefir grains.
Mandatory information
- Name: milk kefir grains, live starter culture
- Ingredients: milk kefir grains: live culture of lactic acid bacteria, yeasts and acetic acid bacteria, in fresh milk
- Allergens: milk
- Net quantity: 10 g or 20 g of grains (as selected)
- Storage: Keep in the fridge in fresh milk, renewing the milk every 7 days. Use as soon as possible after delivery.
- Responsible: owner of the Natural Probio brand (full details in the legal notice)
Live culture for making drinks or foods at home.
Delivery and returns
- Free delivery from £35: standard tracked delivery in 3 to 6 working days across the UK, VAT included.
- Dispatched within 24 to 48 hours on working days, packed securely for the journey.
- Standard tracked delivery: £4.90, free from £35, delivered in 3 to 6 working days across the United Kingdom. Express tracked delivery: £14.90, 3 to 5 working days. All prices include VAT. Dispatched within 24 to 48 hours on working days.
- We help until it works: if your culture does not get going despite the guide, we will find a solution together. Returns and conditions.
Why you'll love it
Real kefir, fresh every morning
Thick, fresh and tangy, with a faint prickle on the tongue. Made with the milk that's already in your fridge.
Creamy and tangy
Fuller than buttermilk, fresher than yoghurt. Straight from the glass, over your granola or stirred through your morning porridge.
Ready in 24 hours
Grains into the milk, cloth on top, and tomorrow you have a litre. About two minutes of work a day.
They grow with you
The grains get bigger with every batch. After a few weeks you can use more milk or pass your surplus on.
From traditional methods
Our cultures come from traditional methods: unique and vigorous. They're at work from the very first jar.
As simple as this
Your first kefir in 24 hours
Milk into the jar
Pour 1 litre of whole milk (the blue top) into a clean glass jar. Cow's, goat's or sheep's milk, pasteurised or straight from the farm.
Add the grains
Add the 20 g of grains, give it a quick stir and cover the jar with a cloth and an elastic band.
Wait and strain
24 hours at 20 to 25°C. When the milk has thickened and smells fresh and sour, strain it and put the grains into fresh milk.
The right amount
10 g or 20 g?
| 10 g | 20 g | |
|---|---|---|
| Kefir a day | Half a litre | 1 litre |
| Best for | Trying it out, one person | The whole household, cooking and baking |
| Milk per batch | Half a litre of whole milk | 1 litre of whole milk |
| Fermentation time | 24 hours at 20 to 25°C | 24 hours at 20 to 25°C |
| Jar | A little over half a litre | A little over 1 litre |
With 10 g you start gently, and because the grains grow, you'll be up to a litre a day before long. Would you like a sparkling drink alongside it? The kefir duo adds water kefir grains and costs less than buying the two separately.
In the kitchen
The buttermilk swap, and plenty more
Buttermilk turns up in plenty of British baking, from scones to Pancake Day batter, and it's never in the fridge on the day you need it. Milk kefir does the same job, and you never have to run out for a carton again. Use it cup for cup in scones, drop scones or a quick wholemeal loaf: it reacts with the bicarb in exactly the same way, giving a good rise, a soft crumb and that gentle tang. The differences in taste and in use are covered in kefir or buttermilk?
Beyond baking, kefir goes wherever you'd use yoghurt or buttermilk now. Stirred into oats the night before as kefir overnight oats, blended into a banana kefir smoothie, or hung in a cloth overnight for a soft strained kefir cheese to spread on toast or warm crumpets. It also makes a lovely moist kefir apple cake with Bramleys in the autumn.
Which milk works best, and how to make your kefir thicker or thinner, is explained in the best milk for kefir and milk kefir too thin or too thick.
Questions
What people ask us before ordering
Which milk can I use?
Whole cow's milk, goat's milk or sheep's milk, pasteurised or raw. Whole milk gives the creamiest kefir, and semi-skimmed works if that's what's in the fridge. Long-life milk works too, but the texture comes out thinner.
How is it different from kefir in the supermarket?
The bottles in the chiller cabinet are a finished drink. With live grains you make it yourself, fresh every day, and you decide how thick and how tangy it gets. The supermarket sells the drink, not the grains.
Can I use kefir instead of buttermilk in scones?
Yes, cup for cup. Kefir is slightly thicker than most buttermilk, so if your dough feels stiff, add a splash of milk. Kefir that has been fermenting a little longer, and is nicely sour, gives the best rise.
How long do the grains last?
Years, if you give them fresh milk every day or every other day. They keep growing, so over time you can make more.
Can I use plant milk?
The odd batch with oat or soya drink is possible, but the grains need dairy milk to keep growing. More in kefir with plant milk.
What if it doesn't turn out well?
Email us with a photo of your jar. It's usually the temperature or the amount of milk, and then you have the fix straight away. The usual suspects are in milk kefir problems and solutions. If the culture is at fault, you'll get a replacement or your money back.
Reviews
What others say about Milk kefir
There are no reviews for this product yet. Have you tried it already? Tell us how your first batch turned out.
Real reviews
Also on Trustpilot
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 Trustpilot
Set
Kefir duo: water kefir and milk kefir
Water kefir 30 g + Milk kefir 20 g. One creamy, one fizzy, every day.
You save £4 compared with buying separately
£27£54 / 100 g
incl. VAT, plus delivery (free from £35)Goes well with
Make your kitchen even livelier
incl. VAT, plus delivery (free from £35)
Know-how
Everything you need to get it right first time
Guide
How to make milk kefir
Your first jar of homemade kefir in 24 hours, with 20 g of grains and a litre of whole milk.
Read the guideGuideWhich milk for kefir?
From blue top to gold top and goat's milk: what each milk does to your kefir.
Read the guideGuideCaring for kefir grains
Daily care, breaks, holidays and growth: how to keep your grains in top form.
Read the guide