Water kefir
Milk kefir
Kombucha
Ginger beer
Kefir duo
Kefir and kombucha
Rennet
Kefir duo: water kefir and milk kefir
30 g of water kefir grains and 20 g of milk kefir grains in one order: a sparkling drink and a creamy one, every day, for less than buying them separately.
- 30 g water kefir grains + 20 g milk kefir grains
- Two drinks, each ready in 24 hours
- Better value than buying separately
- Both step-by-step guides included
Free delivery from £35
What you get
- 30 g of live water kefir grains.
- 20 g of live milk kefir grains.
- Both step-by-step guides and our online recipe collection.
How to start a batch
Each culture gets its own jar: the water kefir grains with water, sugar, a dried fig and a slice of lemon, the milk kefir grains with whole milk. Both take 24 hours at 20 to 25°C. Every step is in the guides to water kefir and milk kefir.
Storing the cultures
Water kefir: between batches, the grains wait in the fridge in fresh sugar water for up to two weeks.
Milk kefir: need a break? Put the grains in fresh milk in the fridge, where they'll wait for up to a week.
Can't start on the day they arrive? The cultures wait in their pouches in the fridge for two to three days.
Mandatory information
- Name: set of water kefir grains and milk kefir grains, live starter cultures
- Ingredients: Water kefir: water kefir grains: live culture of lactic acid bacteria and yeasts in a polysaccharide matrix, in their culture liquid (water, sugar). Milk kefir: milk kefir grains: live culture of lactic acid bacteria, yeasts and acetic acid bacteria, in fresh milk.
- Allergens: contains milk (milk kefir grains)
- Net quantity: 30 g of water kefir grains and 20 g of milk kefir grains
- Storage: Water kefir: Keep in the fridge in sugar water, renewing the sugar water every week. Use as soon as possible after delivery. Milk kefir: 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.
One fizzy drink and one creamy one, every day
A glass of milk kefir with your porridge in the morning, water kefir with fruit instead of a fizzy drink in the afternoon. Each one takes two minutes to set up.
Water kefir
Fresh, fruity and lightly tart: 1 litre every 24 hours from water, sugar and fruit.
Milk kefir
Thick and tangy: 1 litre every 24 hours from the whole milk you buy anyway.
Better value as a set
You save £4 compared with buying the two cultures separately.
From traditional methods
Two cultures, unique and vigorous, that start strong and keep going for years.
Two cultures, two drinks
| Water kefir 30 g | Milk kefir 20 g | |
|---|---|---|
| Base | 1 litre of water, 4 tablespoons of sugar, a fig, a slice of lemon | 1 litre of whole milk |
| Fermentation time | 24 hours | 24 hours |
| Taste | Fruity, sparkling | Creamy, tangy |
| Best for | Homemade lemonade, second fermentation with fruit | Breakfast, smoothies, baking, dips |
| Work | 2 minutes a day | 2 minutes a day |
The two fit neatly into the same daily routine: strain both in the morning, start the next batches, and you're done before the kettle boils. You'll soon find out which one you reach for more often. The background is in water kefir or milk kefir?
What you'll make with the pair
The water kefir is your homemade lemonade. In the bottle with a few strawberries it turns into strawberry water kefir, and with lemon and ginger into a sharp, sparkling lemon and ginger water kefir.
The milk kefir is the one that ends up in everything else. Use it instead of buttermilk in scones and pancakes, stir it into kefir overnight oats or blend it into a banana kefir smoothie. Start with the guides: your first days with water kefir and how to make milk kefir.
Want kombucha as well, later on? The complete starter kit adds a SCOBY and is the best-value way to have all three. Cheese makers often add a bottle of liquid calf rennet, since the milk is already in the fridge.
What people ask us before ordering
Can I start both on the same day?
Do I need any special equipment?
Does the duo make a good gift?
How much is delivery?
What if a culture doesn't get going?
What others say about Kefir duo
There are no reviews for this product yet. Have you tried it already? Tell us how your first batch turned out.
Also on Trustpilot
What our customers say, exactly as they posted it on Trustpilot.
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
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)Make your kitchen even livelier
incl. VAT, plus delivery (free from £35)