The complete kit: milk kefir, water kefir and kombucha in a single box
In short
The complete kit gathers every culture in the Natural Probio kitchen range: 20 g of live milk kefir grains, 30 g of live water kefir grains and a kombucha SCOBY in its own liquid. That means three homemade drinks: thick, tangy milk kefir and light, fizzy water kefir, both ready the day after you start, plus a tea-based kombucha that takes about a week. There is a guide for each, and buying the three together costs less than buying them one by one.
- Inside
- Three live cultures
- Drinks
- Milk kefir, water kefir, kombucha
- Guides
- One per culture
- Value
- Our best in the range
Some people arrive knowing precisely what they want. Others would rather try the lot before settling on a favourite, or are hunting for a present with real staying power. The complete kit is made for them: the whole Natural Probio range for your kitchen in one delivery, with instructions for every drink.
Opening the kit
- Milk kefir grains, 20 gFor roughly a litre of creamy, sour kefir each day.
- Water kefir grains, 30 gIn their own liquid, for roughly a litre of fizzy, fruity drink each day.
- A kombucha SCOBY in its liquidThe living culture that turns sweet tea into sparkling kombucha.
- Three guidesSeparate step-by-step instructions for each drink, with the signs that things are going well.
- Our recipe collectionScan the booklet's QR code for recipes and flavour combinations.
- The Natural Probio promiseA lifetime activity guarantee on your cultures, and your money back if you are unhappy.
Three drinks, three temperaments
| Drink | Flavour | Ready | Perfect for |
|---|---|---|---|
| Milk kefir | Creamy and sharp | The day after | Breakfast, smoothies, the kitchen |
| Water kefir | Fruity, light, fizzy | The day after | Lunchtime, warm days, children's parties |
| Kombucha | Sparkling tea, rounder and gently sour | In about a week | Tea drinkers, an early-evening glass |
As kombucha is brewed from tea, it contains theine, which the two kefirs do not. Milk kefir contains milk; water kefir and kombucha are made without any.
Your first week with the kit
Day one. The box arrives. You set the milk kefir and the water kefir going in two small jars and the kombucha in a bigger one. If three at once feels ambitious, each guide explains how to rest a culture in the fridge for a few days while you start the others.
Day two. Milk kefir for breakfast, water kefir bottled with a twist of orange, and both sets of grains straight back into fresh milk and fresh sweetened water.
Days three to six. The two kefirs fall into a daily rhythm while the kombucha takes its time. Favourites start to emerge: kefir over porridge, water kefir with ginger, perhaps a kefir dressing on a salad.
Around day seven. The first kombucha is ready to taste and bottle. From here on, something creamy, something fruity and something tea-based are always on the go, for very little time each day.
Who will love it
All three at once
Taste the lot, then carry on with whichever ones win you over.
Something for everyone
Creamy for breakfast, fizzy for the children, tea-based for the grown-ups.
A well-stocked fridge
Kefir for baking and marinades, kombucha and water kefir for the table.
Not a kombucha fan? The milk and water kefir duo keeps to the two kefirs. Want to compare every option first? Choosing your kefir lays them all out.
From customers
“Thrilled with my milk and water kefir set, and whatever you ask, they're delighted to help.”
Irene M., July 2026Trustpilot review, translated from Spanish“Client service was very quick at sending me the missing item. Both grains and SCOBY are producing great drinks.”
Juliette M., June 2026Trustpilot reviewKit questions
Must I start all three on day one?
Not at all. Every guide explains how to keep its culture in the fridge for a few days, so you can stagger the starts.
Where will it all go?
Two small jars for the kefirs, a larger one for the kombucha, and a shelf's worth of bottles in the fridge.
Why does the kit work out cheaper?
Ordering the three cultures together costs less than buying each one separately. Today's price is on the official shop.
Is the kit a good present?
Very much so. Have it posted to the recipient and warn them a live parcel is coming, so they open it promptly.
The Natural Probio complete kit
Milk kefir, water kefir and kombucha: every culture in our kitchen range in one box, each with its guide.
- Milk kefir 20 g, water kefir 30 g and a SCOBY
- Three guides plus our recipe collection
- Better value than buying separately
- Lifetime activity guarantee
Grains from time-honoured methods, unique and resilientDispatched within 24 to 48 hours, trackedLifetime guarantee on your grains' activityOver 20,000 customers worldwide
