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Freshly Fermented – Organic Certified Milk Kefir Grains Starter Culture, 10 Grams

4.1 out of 5 stars 118 ratings

Currently unavailable.
We don't know when or if this item will be back in stock.
Diet type

About this item

  • MILK KEFIR GRAINS - Get your beneficial bacteria the homemade way. Similar to yoghurt but a drink with a tart, sour taste and a slight fizz, you can mix your kefir with fruit, syrup or make a smoothie to mask the sour taste
  • ORGANIC CERTIFIED & UKAS LAB TESTED - Our milk kefir starter culture is certified by the Organic Food Federation and UKAS lab tested. The culture is packaged in food grade biodegradable plastic
  • SUITABLE FOR ANY MILK - Our kefir grains will ferment any animal milk including cow, sheep and goats
  • BACTERIA RICH - A vast variety of bacteria have been isolated and identified in kefir grains including Lactobacilli, Streptococci Lactococci, Acetobacter and Yeasts. It provides your body with high levels of bacteria and minerals
  • REUSABLE STARTER CULTURE - Our milk kefir is a traditional grain style kefir culture. This culture can be used indefinitely to create delicious bacteria-rich kefir over and over again

Additional details

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Product Information

Technical Details

General Information
Item Weight ‎32 g
Additives ‎Milk, Kefir Grains
Units ‎10.0 gram
Storage Instructions ‎Refrigerate after activation and consume within 21 days.
Serving Recommendation ‎125g
Brand ‎Freshly Fermented
Format ‎Powder
Speciality ‎Organic Certified, Versatile Milk Compatibility, Bacteria and Yeast Rich
Package Information ‎Pouch
Manufacturer ‎Freshly Fermented®
Nutrition Facts
Serving Size ‎400 g

Additional Information

ASIN B07ZXMCZJC
Customer Reviews
4.1 out of 5 stars 118 ratings

4.1 out of 5 stars
Best Sellers Rank
Date First Available 2 Nov. 2019

Warranty & Support

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Freshly Fermented – Organic Certified Milk Kefir Grains Starter Culture, 10 Grams


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Important information

Safety Information:

Keep refrigerated until activated. Contains milk (from cows). This product is not suitable for individuals with milk allergies.

Directions:

To use the product, rehydrate the milk kefir starter culture by following the instructions provided. Once the culture is active, you can mix it with any animal milk and let it ferment at room temperature for 24 hours. After fermentation, you can consume the kefir as is or mix it with fruit, syrup, or make a smoothie to mask the sour taste. The culture can be reused and recultured over and over again.

Legal Disclaimer

Actual product packaging and materials may contain more and different information than what is shown on our app or website. We recommend that you do not rely solely on the information presented here and that you always read labels, warnings, and directions before using or consuming a product.

Disclaimer: While we work to ensure that product information on our website is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our website. All information about the products on our website is provided for information purposes only. We recommend that you do not solely rely on the information presented on our website. Please always read the labels, warnings, and directions provided with the product before using or consuming a product. In the event of any safety concerns or for any other information about a product please carefully read any instructions provided on the label or packaging and contact the manufacturer. Content on this site is not intended to substitute for advice given by medical practitioner, pharmacist, or other licensed health-care professional. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements about products are not intended to be used to diagnose, treat, cure, or prevent any disease or health condition. Amazon.co.uk accepts no liability for inaccuracies or misstatements about products by manufacturers or other third parties. This does not affect your statutory rights.


From the brand


Product Description

Product label for 'Freshly Fermented Organic Milk Kefir' with stylized footprint logo, displayed on dark wooden surface.
Brown resealable pouch containing organic milk kefir grains. Package displays product name, weight, and organic certification symbols.

Logo design featuring text 'FRESHLY FERMENTED' with decorative microorganism-inspired illustration in blue-green color scheme.

At Freshly Fermented, we’re on a mission to make your gut do a happy dance! We're all about serving up organic, vegan-friendly starter cultures so anyone curious about the wild world of fermentation can dive right in.

Whether you're a fermentation newbie or a seasoned probiotic pro, we’ve got your back (and your belly) with a huge range of easy-to-use, gut-loving goodies. Fermenting at home has never been this fun—or this friendly to your gut and the planet!

Freshly Fermented

Organic Milk Kefir Grains

Meet milk kefir grains—the little fermenting rockstars that turn regular ol' milk into a creamy, tangy probiotic powerhouse! These magical grains chow down on lactose, leaving you with a thick, drinkable yogurt-like treat that's loaded with friendly bacteria and yeast. They’re perfect for whipping up a gut-loving drink that’s got all the flavor and none of the fuss. Plus, they’re super versatile—throw it in smoothies, mix with fruit, or just sip it straight for a tasty probiotic boost.

  • Organic Certified by the Organic Food Federation
  • Grown here in the UK with love by a small team of gut health nuts!
  • Happy cows - we use only organic grass fed cows milk
  • Full support along your journey to gut health

INSTRUCTIONS

White liquid being poured from a container into a clear glass on a wooden surface, likely milk or a similar dairy product.

MILK SELECTION

We recommend organic dairy milk for the best kefir, but cow and goat's milk work well. Whole milk produces thicker kefir, while semi-skimmed and skimmed milk make thinner kefir.

Clear glass storage jar with hinged lid and metal locking clamp closure mechanism, shown empty against white background.

ACTIVATING THE GRAINS

Use a glass jar for fermenting milk kefir.

To activate, place the grains in 250ml of milk and cover the jar. Leave them at room temperature (21°C) for up to 48 hours until the milk separates.

- Stir the mixture well, strain out the grains, and discard the milk.

picture of a jar of milk kefir fermenting

THE FERMENTATION PROCESS

Use 250ml of milk per 5g of milk kefir grains. Place the grains in the milk. Stir the mixture every 6 to 12 hours.

- Fermentation time varies with room temperature. Typically, it takes 24 hours at 18 degrees Celsius. Adjust time as needed.

Creamy white beverage in a rocks glass, garnished with fresh mint leaves and ice cubes, served on a wooden surface.

THICKENING AND TEXTURE

Grains may take time to settle into a new environment. Milk kefir may not thicken fully in the beginning, but it's still fine to consume.

After settling, kefir will have a better consistency and taste.

Gut health infographic with intestinal diagram. Text reads 'Happy Gut, Happy You!' Lists benefits of fermented foods and probiotic-rich diet.
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Customer reviews

4.1 out of 5 stars
118 global ratings

Customers say

Customers find the kefir grains to be of great quality and easy to use, with the grains multiplying quickly and producing good-tasting results. Moreover, the product performs well and customers consider it very healthy. However, opinions on value for money are mixed.

15 customers mention ‘Quality’14 positive1 negative

Customers find the kefir grains to be of excellent quality, with one customer noting that their batch was ready to consume the next day.

"It is best to use a mason-type jar with a screw-on lid...." Read more

"...(when made properly with quality Goats mil)." Read more

"...A great quality starter if you want to make your own kefir at home." Read more

"Love this for breakfast. Easy to make, saves a fortune." Read more

7 customers mention ‘Effectiveness’6 positive1 negative

Customers report that the kefir grains work well, with one customer noting they produce live cultures within a week.

"Works exactly as the instructions tell you. The kefir grains hydrated within 72 hours and from the second ferment onwards have performed really well...." Read more

"...The grains were healthy and I had no problem getting them started. They have multiplied already after a couple of weeks." Read more

"...I found this grain starter to produce a live and tasty Kefir (when made properly with quality Goats mil)." Read more

"Got a working Kefir within a week. Grains are constantly multiplying." Read more

7 customers mention ‘Growth rate’7 positive0 negative

Customers report that the kefir grains multiply very quickly.

"And multiply very quickly" Read more

"...Ive only had to purchase the grains once because they keep growing and I can freeze them for when I might need them later on.wpuld definitely..." Read more

"The grains were fresh and very active. They quickly multiply allowing me to give some to family to try." Read more

"...It is multiplying we ll now after one week. Have recommended this product to my friends." Read more

7 customers mention ‘Kefir quality’6 positive1 negative

Customers are satisfied with the kefir grains, describing them as excellent, with one customer noting they produce a lovely thick refreshing drink, while another mentions having a batch ready to consume.

"Great grains, took so little time for them to work!" Read more

"...Excellent grains and will last you for ever. next will be the bulgarian Yogurt which are as good as the Kefir Grains !..." Read more

"...Instructions were clear and easy to follow, and the grains look strong and active. A great quality starter if you want to make your own kefir at home." Read more

"Outstanding grains looking very healthy and proper. Fast deliver, perfect packing and very professional company. Thank you." Read more

6 customers mention ‘Taste’5 positive1 negative

Customers enjoy the taste of the kefir, with one describing it as tangy.

"...I found this grain starter to produce a live and tasty Kefir (when made properly with quality Goats mil)." Read more

"...Within a couple of days they were making a thick, tangy kefir with a lovely authentic flavour...." Read more

"...Still small grains however the kefir tastes good." Read more

"...and in 7 days I noticed that the kefir they produced began having a decent taste and I started consuming it...." Read more

5 customers mention ‘Ease of use’5 positive0 negative

Customers find the kefir starter culture easy to use and make.

"Easy to use" Read more

"...I now have lovely thick refreshing kefir.so easy to make.I add puréed fruit for a healthy refreshing probiotic drink." Read more

"Love this for breakfast. Easy to make, saves a fortune." Read more

"...Instructions were clear and easy to follow, and the grains look strong and active. A great quality starter if you want to make your own kefir at home." Read more

4 customers mention ‘Health’4 positive0 negative

Customers find the kefir grains healthy.

"Outstanding grains looking very healthy and proper. Fast deliver, perfect packing and very professional company. Thank you." Read more

"...They appeared to be well packed and healthy, judging by their colour...." Read more

"Love them - I am now converted to making kefir. The grains were healthy and I had no problem getting them started...." Read more

"Healthy grains, delicious kefir..." Read more

5 customers mention ‘Value for money’3 positive2 negative

Customers have mixed opinions about the value for money of the kefir starter culture, with some finding it well worth the cost while others consider it a waste of time and effort.

"Been making kefir for months now, so much cheaper and tastes better than brought kefir" Read more

"Just disgusting. And overpriced too, for what it is." Read more

"...considering that kefir grains are hard to find, so I think it is well worth it. 👍..." Read more

"48hrs nothing, followed instructions to the letter. Waste of time and effort. Use someone else folks!!" Read more

Healthy grains, delicious kefir
5 out of 5 stars
Healthy grains, delicious kefir
The grains arrived fresh, well packaged, and were ready to go straight away. Within a couple of days they were making a thick, tangy kefir with a lovely authentic flavour. Instructions were clear and easy to follow, and the grains look strong and active. A great quality starter if you want to make your own kefir at home.
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Top reviews from United Kingdom

  • Reviewed in the United Kingdom on 18 August 2025
    The grains arrived fresh, well packaged, and were ready to go straight away. Within a couple of days they were making a thick, tangy kefir with a lovely authentic flavour. Instructions were clear and easy to follow, and the grains look strong and active. A great quality starter if you want to make your own kefir at home.
    Customer image
    5.0 out of 5 stars
    Healthy grains, delicious kefir

    Reviewed in the United Kingdom on 18 August 2025
    The grains arrived fresh, well packaged, and were ready to go straight away. Within a couple of days they were making a thick, tangy kefir with a lovely authentic flavour. Instructions were clear and easy to follow, and the grains look strong and active. A great quality starter if you want to make your own kefir at home.
    Images in this review
    Customer image
  • Reviewed in the United Kingdom on 5 November 2024
    I bought this nearly 6 months ago, and it (literally) goes from strength to strength, even after recovering from a frozen sample. Once you get used to it, you may like it stronger, but you can make it milder or stronger, depending on how long you let it grow.

    Tips:

    1) When you first start, use only a small amount of VERY fresh whole milk (about half a pint tops) and gradually increase once it gets going.

    2) Get a couple of fermenting jars as shown. Keep them clean.

    3) Once fermented, drain through a plastic sieve, then put about half of the solids back into the (cleaned) jar for the next batch. Throw the rest of the solids back in the liquids and blend with a hand-held blender, before putting in the fridge. This produces a nice thick liquid.

    You will never want to go back to the bland supermarket kefir. We add it to our breakfast, it goes well with granola and fruits.
    Customer image
    5.0 out of 5 stars
    Still fabulous after 6 months

    Reviewed in the United Kingdom on 5 November 2024
    I bought this nearly 6 months ago, and it (literally) goes from strength to strength, even after recovering from a frozen sample. Once you get used to it, you may like it stronger, but you can make it milder or stronger, depending on how long you let it grow.

    Tips:

    1) When you first start, use only a small amount of VERY fresh whole milk (about half a pint tops) and gradually increase once it gets going.

    2) Get a couple of fermenting jars as shown. Keep them clean.

    3) Once fermented, drain through a plastic sieve, then put about half of the solids back into the (cleaned) jar for the next batch. Throw the rest of the solids back in the liquids and blend with a hand-held blender, before putting in the fridge. This produces a nice thick liquid.

    You will never want to go back to the bland supermarket kefir. We add it to our breakfast, it goes well with granola and fruits.
    Images in this review
    Customer image
    7 people found this helpful
    Report
  • Reviewed in the United Kingdom on 13 August 2025
    The expiry date was very close to the date of arrival. I was disappointed.
  • Reviewed in the United Kingdom on 3 July 2025
    I brought these kefir grains because I wanted to start making my own kefir for the first time. They arrived on time and we'll packaged with a leaflet to get instructions off the site. Ive only had to purchase the grains once because they keep growing and I can freeze them for when I might need them later on.wpuld definitely recommend 👌
  • Reviewed in the United Kingdom on 31 December 2024
    It is best to use a mason-type jar with a screw-on lid. Place the Kefir grains in the jar, add about 30ml of whole milk, and leave in a warm place or if it is cold, place a towel to trap in the warmth. It can take one to three days to be ready. Sieve out the grains from the kefir, place the grains back into a clean jar, and add 60ml of milk. Repeat as above twice more, doubling the amount of milk. the Kefir grains are now ready to make a full jar. Never wash the grains. Best Kefir grains on Amazon and I have tried a few different ones.
  • Reviewed in the United Kingdom on 12 July 2023
    Dear Sirs
    I have been a user of kefir for many years, however I travel and therefore find that the restrictions on customs mean that one can’t take this product through customs, with any sense of responsibility. However I also find that storing or retaining grains is subjective as to their viability. I therefore raise the Question of cost. The price of grains is now almost that of Gold!! admittedly these are two different commodities and could potentially last for the same period.
    However if your genuine intentions are for the benefit of mankind and not just to exploit a market that promotes good health etc, then I believe that your prices should be reduced, as the continuing promotion of a product that has never been disproved as bogus or not doing what it says on the tin, leads me to believe that an acceptable reduction in price, would be beneficial to more people and as well as promoting your product, would also increase sales to the benefit of all.
    One person found this helpful
    Report
  • Reviewed in the United Kingdom on 1 June 2021
    I had to wait 6 days for the grains to arrive by post. They appeared to be well packed and healthy, judging by their colour. I had ordered 10g and I weighed them at 9g but its no biggie this might have been my scale’s error. After reading carefully the instructions I tried to follow them precisely and in 7 days I noticed that the kefir they produced began having a decent taste and I started consuming it. Today (day 12, last picture) I can say the taste has improved even more, although I do think there is more room for it. I think it has about doubled in size as well.

    Generally I am content with my purchase, especially considering that kefir grains are hard to find, so I think it is well worth it. 👍
    Customer image
    Aj
    4.0 out of 5 stars
    Happy but needed and still needs patience.

    Reviewed in the United Kingdom on 1 June 2021
    I had to wait 6 days for the grains to arrive by post. They appeared to be well packed and healthy, judging by their colour. I had ordered 10g and I weighed them at 9g but its no biggie this might have been my scale’s error. After reading carefully the instructions I tried to follow them precisely and in 7 days I noticed that the kefir they produced began having a decent taste and I started consuming it. Today (day 12, last picture) I can say the taste has improved even more, although I do think there is more room for it. I think it has about doubled in size as well.

    Generally I am content with my purchase, especially considering that kefir grains are hard to find, so I think it is well worth it. 👍
    Images in this review
    Customer imageCustomer imageCustomer imageCustomer image
    7 people found this helpful
    Report
  • Reviewed in the United Kingdom on 27 May 2025
    Works exactly as the instructions tell you. The kefir grains hydrated within 72 hours and from the second ferment onwards have performed really well. After making 5 litres of kefir, the grains are ready to divide, to double my production.
    One person found this helpful
    Report

Safety and product resources

Regulatory Information

The organic inspection body code number: LU–BIO–04.

Product Summary: Freshly Fermented – Organic Certified Milk Kefir Grains Starter Culture, 10 Grams

From Freshly Fermented

4.1 out of 5 stars, 118 ratings

Customer reviews

Price

No featured offers available

Other sellers

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About this Item

  • MILK KEFIR GRAINS - Get your beneficial bacteria the homemade way. Similar to yoghurt but a drink with a tart, sour taste and a slight fizz, you can mix your kefir with fruit, syrup or make a smoothie to mask the sour taste
  • ORGANIC CERTIFIED & UKAS LAB TESTED - Our milk kefir starter culture is certified by the Organic Food Federation and UKAS lab tested. The culture is packaged in food grade biodegradable plastic
  • SUITABLE FOR ANY MILK - Our kefir grains will ferment any animal milk including cow, sheep and goats
  • BACTERIA RICH - A vast variety of bacteria have been isolated and identified in kefir grains including Lactobacilli, Streptococci Lactococci, Acetobacter and Yeasts. It provides your body with high levels of bacteria and minerals
  • REUSABLE STARTER CULTURE - Our milk kefir is a traditional grain style kefir culture. This culture can be used indefinitely to create delicious bacteria-rich kefir over and over again

Product description

Product description

Freshly Fermented Milk Kefir Starter Culture

Kefir’s tarter and refreshing flavour is similar to a drinking-style yoghurt, but it contains beneficial yeast as well as friendly ‘probiotic’ bacteria found in yoghurt. The Freshly Fermented milk kefir starter culture can be reused and recultured over and over again; having an endless supply of milk kefir.

Directions
To use the product, rehydrate the milk kefir starter culture by following the instructions provided. Once the culture is active, you can mix it with any animal milk and let it ferment at room temperature for 24 hours. After fermentation, you can consume the kefir as is or mix it with fruit, syrup, or make a smoothie to mask the sour taste. The culture can be reused and recultured over and over again.
Safety Warning
Keep refrigerated until activated. Contains milk (from cows). This product is not suitable for individuals with milk allergies.

Important information

Safety Information:

Keep refrigerated until activated. Contains milk (from cows). This product is not suitable for individuals with milk allergies.

Directions:

To use the product, rehydrate the milk kefir starter culture by following the instructions provided. Once the culture is active, you can mix it with any animal milk and let it ferment at room temperature for 24 hours. After fermentation, you can consume the kefir as is or mix it with fruit, syrup, or make a smoothie to mask the sour taste. The culture can be reused and recultured over and over again.

Legal Disclaimer

Actual product packaging and materials may contain more and different information than what is shown on our app or website. We recommend that you do not rely solely on the information presented here and that you always read labels, warnings, and directions before using or consuming a product.

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Regulatory Information

The organic inspection body code number: LU–BIO–04.

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