Natural Probio kefir grains: what customers write about us
In short
Trustpilot reviewers give Natural Probio 4.8 out of 5, and more than 20,000 customers around the globe have ordered from us. The same themes keep coming up: grains that turn up quickly and get going, instructions a beginner can follow, and a team that answers promptly and kindly. Below is a selection of genuine reviews from Trustpilot and from our product pages, with translations clearly marked.
We would rather let customers speak than sing our own praises. Every review on this page was posted on Trustpilot or on a Natural Probio product page. Reviews originally written in another language have been translated as faithfully as we can manage, and we say so beneath each one; where we have shortened a review, you will see […]. None has had its meaning altered.
The headline figures
About milk kefir
This site is all about milk kefir, so these come first: reviews that talk about it directly.
“A few days into making milk kefir, we've found our rhythm and it turns out spot on, absolutely delicious. The instructions are clear, and there's even the option of one-to-one help if doubts or snags crop up.”
Alex C., September 2026Trustpilot review, translated from Spanish“Shipping and product quality alike: fantastic! My milk kefir grains are incredibly lively […]. Thoroughly recommend.”
Montse AJ, October 2026Trustpilot review, translated from Spanish“Lovely customer service. Thrilled with my milk and water kefir set, and whatever you ask, they're delighted to help. I'd recommend it to anyone.”
Irene M., July 2026Trustpilot review, translated from SpanishAbout postage and quality
A live culture has to travel well, so it is no surprise that speed and condition on arrival come up often.
“Fast shipping. The product is superb.”
Elli S., August 2025Trustpilot review“Good product, it does just what it's meant to.”
Ronald K., October 2026Trustpilot review, translated from German“Really good stuff. I'm already setting up my third kefir and I have some every day.”
Matthias L., August 2024Trustpilot review, translated from German“Great brand”
Michail P., July 2026Trustpilot reviewAbout the help we give
Using a culture for the first time throws up questions. What customers value most is a quick answer from a human being.
“We had a query about getting the kefir going and received an immediate, useful and kind reply.”
Wibke S., October 2025Trustpilot review, translated from German“[…] when the package arrived, a part of the kefir was missing. Client service was very quick at sending me the missing item.”
Juliette M., June 2026Trustpilot reviewAbout our other cultures
Plenty of customers try more than one culture. Here is what they say about water kefir and kombucha, both of which you can pair with milk kefir in the duo or the complete kit.
“[…] the instructions are incredibly clear, thorough, and easy to follow […]. Both cultures worked perfectly on the very first try, and the drinks taste absolutely delicious.”
Elisa, June 2026Trustpilot review, water kefir and kombucha“The water kefir crystals sent were of very good quality. Getting them going was a doddle. Plenty of recipe ideas came with them. Thank you!”
Stefan T., May 2026Trustpilot review, translated from German“Lovely quality. My water kefir grains are gorgeous. Very quick delivery, and a very friendly reception on the phone.”
Vassel, February 2023Review on the water kefir product page, translatedWhy we take reviews seriously
Each review is a reminder of what we have promised: grains that arrive alive, a guide that makes the first week straightforward, and people who reply. When something does go wrong, like the missing item in Juliette's parcel, we put it right fast and never ask you to post anything back. That is all part of our delivery promise and of what we commit to on quality.
Looking for reviews from people in your shoes? We have sorted them by situation, from total beginners to keen home cooks, in reviews by profile.
Questions about the reviews
Are these real reviews?
Every one. They come from Trustpilot or our product pages; translations are flagged and the meaning is never changed.
Where can I see every review?
Follow the Trustpilot link in the figures above: that is where reviewers rate Natural Probio 4.8 out of 5.
Why mention water kefir and kombucha on a milk kefir site?
Because many customers try more than one of our cultures, and every one of them comes with the same guidance, the same help and the same promise.
Join over 20,000 kefir makers
Live milk kefir grains, with all you need to get it right from your very first jar.
- Grains that arrive alive and lively
- Complete guide and recipe collection
- Rated 4.8 out of 5 by Trustpilot reviewers
- Your money back if it isn't right
Grains from time-honoured methods, unique and resilientDispatched within 24 to 48 hours, trackedLifetime guarantee on your grains' activityOver 20,000 customers worldwide
