Water kefir grains reviews: what customers like you say
At a glance
More than 20,000 customers around the world have started their homemade drinks with Natural Probio, and the brand is rated 4.8 out of 5 on Trustpilot. On this page, real reviews are grouped by situation (complete beginners, families, people returning to a taste from childhood, the curious who want to try everything, and those who value good service), each with the product we would suggest for that situation.
- Customers
- 20,000+
- Trustpilot
- 4.8 out of 5
- Reviews here
- Real, unedited in meaning
A review means more when it comes from someone in your shoes. So rather than one long list, we have sorted genuine reviews, left on Trustpilot or on our product pages, by the situation their authors were in. Reviews written in another language are translated and marked as such, and any cut is shown with […]. We never change their meaning. You can read every review, good or otherwise, on our Trustpilot page.
You have never made it before
That describes most of our customers. Their biggest worry is not knowing what to do; their verdict a few days later is that it was easier than they had imagined, thanks to the leaflet and guide.
"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."
Elisa, June 2026Trustpilot review"The water kefir was delivered straight away and yesterday I drank my first homemade kefir. I'm simply thrilled!!!! I'm having so much fun with it, because it turned out sooo tasty."
Sunny, September 2026Trustpilot review, translated from German"Very good quality water kefir crystals were sent. The activation was child's play. Lots of recipe ideas were sent along too. Thanks!"
Stefan T., May 2026Trustpilot review, translated from GermanOur suggestion: water kefir grains in the 30 g size, plus our beginner's guide so you know what to expect.
You want a drink for the whole household
Families often tell us the same story: water kefir found its place at the table instead of canned drinks, and choosing the week's flavours became a shared job.
"Very good product. I am already starting my third kefir and I drink it every day."
Matthias L., August 2024Trustpilot review, translated from German"Good customer service. Very happy with my milk and water kefir pack, and they're delighted to advise you on any question. I recommend it to everyone."
Irene M., July 2026Trustpilot review, translated from SpanishOur suggestion: the 60 g pouch for about two litres a day, or the kefir duo to add a creamy milk kefir at breakfast.
You are rediscovering a taste from childhood
Many customers remember a jar of these grains on a grandparent's windowsill and want that taste back. They appreciate receiving grains that are alive and ready, and having someone to ask when the old routine has faded from memory.
"After running into a few problems at the start, the advice the seller gave me helped me get my water kefir grains active again. […] I'm treating myself to the drink of my childhood."
Jean-Marc, December 2021Review on the product page, translated"Quick dispatch and quick to get going. The grains are good quality […]. The drink you get is very pleasant and thirst-quenching."
Francis, August 2023Review on the product page, translatedOur suggestion: water kefir grains, and the old-fashioned flavours on our autumn and winter page: apple, blackberry and spice.
You want to try everything
Some customers start with one drink and add a second a few weeks later. Others go straight for several cultures so they can compare.
"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 M., June 2026Trustpilot review"Great brand"
Michail P., July 2026Trustpilot reviewOur suggestion: the water kefir and kombucha duo, or the complete kit for all three cultures.
You love creamy kefir and cooking
Customers who come for milk kefir often end up adding water kefir for the rest of the day, and the other way round.
"After a few days making milk kefir we've got the knack of it and it comes out perfect, delicious. The explanations are clear and they even offer personal support if any doubts or problems come up."
Alex C., September 2026Trustpilot review, translated from Spanish"Both the delivery and the quality of the product: brilliant! My milk kefir grains are super active […]. Totally recommended."
Montse AJ, October 2026Trustpilot review, translated from SpanishOur suggestion: the kefir duo, and our comparison water kefir or milk kefir.
You expect proper service
A living culture deserves support. What comes up most in reviews is how quickly our team responds, before and after an order.
"We had a question about activating the kefir and immediately got a helpful and kind reply."
Wibke S., October 2025Trustpilot review, translated from German"Very good quality. My water kefir grains are beautiful. Very fast delivery, a very warm welcome on the phone."
Vassel, February 2023Review on the product page, translated"Fast shipping. The product is superb."
Elli S., August 2025Trustpilot review"Good product, does exactly what it's supposed to do."
Ronald K., October 2026Trustpilot review, translated from GermanOur commitment: a personal reply within one working day, in English, German, Italian or Spanish, and a lifetime guarantee on the activity of your grains. See our quality promise.
Questions about reviews
Are these reviews genuine?
Yes. They were left on Trustpilot or on our product pages. Translations are marked, cuts are shown with […], and we never alter the meaning.
Where can I read all the reviews?
On Trustpilot, where Natural Probio is rated 4.8 out of 5 by verified customers.
Which product is right for my situation?
Our range comparison takes you from a single pouch to the complete kit in a few seconds.
Join more than 20,000 customers
Natural Probio water kefir grains, our best seller, sent with everything you need to get it right first time.
- Alive and active on arrival
- Step-by-step guide and exclusive recipes
- 4.8/5 on Trustpilot
- 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
