How to use water kefir grains: three steps, five minutes a day
At a glance
You place your grains in sweetened water with a dried fruit and a slice of lemon, leave the jar for about a day, then strain the drink and bottle it with the flavour of your choice. The grains go straight into a fresh jar. It takes around five minutes a day. The guide that comes with your Natural Probio grains explains every step and the signs that tell you all is well.
- Steps
- 3
- Your time
- About 5 minutes a day
- Ready in
- About 24 hours
- Supplied
- Step-by-step guide
If you have been put off by long, technical articles about fermentation, here is the good news: the everyday routine for water kefir is short enough to fit between boiling the kettle and finding your keys. This page shows you how it works in outline. The exact amounts and the little details that make a difference are in the guide that comes in your parcel, written for people who have never done this before.
The three steps
- Set up the jar
Water, sugar, a dried fruit, a slice of lemon, then your grains. Cover with a cloth and you have started.
- Let it work for a day
The jar stays on the worktop. The grains turn the sweetened water into a light, fruity drink without any help from you.
- Strain, flavour, enjoy
Strain, bottle with the fruit or herbs you fancy, then chill. The grains go straight back into a fresh jar.
That is all there is to it. On day one you follow the guide line by line; by the end of the first week most people do it from memory. If you have never made a fermented drink, our water kefir for beginners page walks through the first week, from opening the parcel to pouring the first glass.
What you need
Your live grains
Natural Probio water kefir grains, with the leaflet and the full guide.
Things you already own
A glass jar, a sieve, a clean cloth and a bottle with a good seal.
A few ingredients
Water, sugar, dried fruit, a lemon, and whatever fruit or herbs you like for flavouring.
No machines, no hard-to-find ingredients, no extra kit to buy. A swing-top bottle is the one item worth hunting out if you do not have one, because it keeps the sparkle in.
The guide that comes with your grains
With your grains you receive a starting leaflet and a complete guide in e-book form. Between them they show you, step by step:
- how to set up your very first jar on the day the parcel arrives;
- the simple signs that tell you things are going well;
- how to make your drink softer or livelier, depending on your taste;
- how to get a good sparkle once it is bottled;
- how to give your grains a break when you go away for a few days.
A booklet with a QR code also opens our library of exclusive recipes, so you can change flavours with the seasons: ginger, elderflower, rhubarb and strawberries, or apple, blackberry and mulled spices. See everything you receive.
The guide is written in plain language with visual cues, and it answers the questions every beginner asks. Keep it to hand for the first week, then dip back in whenever you want to try something new. Our team is a quick email away if anything is unclear.
Five minutes a day, honestly
Water kefir needs no babysitting and no special equipment. The daily task, straining and starting a fresh jar, takes about as long as making a pot of tea. For the rest of the day the grains get on with it on their own. Many customers set the jar going before work and strain it at the same time the next morning, so it becomes part of the breakfast routine.
How it fits into a week
| When | What you do | Time |
|---|---|---|
| Each morning | Strain yesterday's jar and start a fresh one | About 5 minutes |
| Bottling | Add fruit, herbs or spices and seal the bottle | A couple of minutes |
| Before a trip | Give the grains a rest, as the guide explains | A few minutes |
Stuck? We are here
A step that puzzles you, or a drink that does not taste the way you expected? Write to hello@natural-probio.com, ideally with a photo. A real person replies, usually the same day. As Stefan T. put it on Trustpilot: "The activation was child's play. Lots of recipe ideas were sent along too" (translated).


It all starts with your grains
Live, active water kefir grains from time-honoured methods, sent with the leaflet, the guide and the recipes.
- First drink ready the next day
- Step-by-step e-book guide
- A team that answers
- Money-back guarantee
Grains from time-honoured methods, unique and resilientDispatched within 24 to 48 hours, trackedLifetime guarantee on your grains' activityOver 20,000 customers worldwide


