Milk Kefir Grains

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Milk Kefir Grains

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Milk kefir grains are live active cultures consisting of yeast and bacteria existing in a symbiotic relationship. Adding the kefir grains to fresh milk yields a delicous probiotic drink in about 24 hours. Milk kefir can be enjoyed plain, flavored, or used in many recipes, like salad dressing, bread, and ice cream.

  • Contains 1 packet of traditional heirloom-style milk kefir grains.
  • Rehydration period of 3-7 days required before regular use.
  • Reusable culture; makes up to 1 quart of kefir with every batch
  • Instructions for using milk kefir grains are included.
  • Cultures on the counter at 68°-85°F
  • Suitable for use with cow or goat milk.
  • Grains require rehydration in pasteurized dairy milk. Once rehydrated, grains may be transitioned to raw milk.
  • May be used to culture coconut, soy, or rice milk once rehydrated in dairy milk; grains require regular refreshing in dairy milk.
  • Nut and seed milks yield inconsistent results. 

Ingredients: Organic whole milk, live active cultures. Packaged in a small amount of organic powdered milk to extend shelf life. 

This product contains no GMO ingredients.

Shipping Information: Our milk kefir grains are shipped in a dehydrated state in a barrier-sealed packet. The product keeps

  • At room temperature (68° to 78°F): 12 to 18 months
  • In the refrigerator (40° to 45°F): 18+ months
  • In the freezer (0° to 25°F): not recommended


Allergen Information:

Contains dairy. Packaged in a facility that also manufactures products made with wheat, soy, eggs, nuts, and fish.



Why I Love This Product:

Milk kefir is my favorite fermented food! It is so easy to make. Every 2 days or so I spend 5 minutes straining and pouring the milk on top of my grains. My kids love it (especially mixed with a little honey). Because the milk kefir grains are reusable, they are an easy inexpensive way to make kefir forever! This is a perfect starter culture for anyone just starting out making their own fermented foods, or for families with only a little time on their hands! Want to know more about culturing milk kefir? Here are some of our blog posts about milk kefir! Erin, Social Media Coordinator



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  • From Anne at 8/7/2011 2:49 PM
    • Effervescent kefir
      I am making my kefir using raw cows milk, fermenting it 12-24 hrs @ 75 degrees. So far the batches haven't become effervescent. Some batches taste like thin yogurt another’s very sour yogurt. What am I doing wrong if anything? What makes the kefir become effervescent?
    • Usually kefir will become more tart and more thick the longer it ferments. You can make the kefir thicker without the tartness by letting it ferment for 10-12 hours and then moving it to the refrigerator for another 24 hours or so, grains and all. The fermentation will slow down and let the milk thicken without souring.

      Putting a lid on the jar as it ferments will help the kefir retain the carbon dioxide and increase effervescence. If you culture with a lid on at room temperature, fill the jar only about 2/3 full instead of all the way, to allow for the buildup of gases.
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  • From C. St John at 8/16/2011 1:11 PM
    • Since I live in inland southern California, where it's very hot in the summer months,I wonder if I should wait until cooler weather before ordering kefir grains. It would be a pity if the heat destroyed them en route. What do you think?

    • Our products generally stand up very well to shipping, even during the summer. If there is ever any problem once you have received the cultures, you can contact us at
    • Do you find this question helpful?  Yes   No
  • From Anne at 8/19/2011 4:10 PM
    • What is the calorie content of kefir made using whole pasteurized milk? The pre kefired milk I am using indicates that 1 cup = 150 calories.
    • The bacteria themselves have no measurable calories. The calorie content of the finished kefir will be about the same as the calorie content of the milk you make it with.
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  • From Eiffel Fleur at 8/26/2011 4:01 PM
    • Why can't kefir grains thrive in coconut milk even if kept fed by the coconut milk? Do they not multiply, and do they just die? So confused. People say they have more than enough grains, but this doesn't happen with coconut milk?

      Will they multiply in coconut milk as they do in cows milk? Also, is kefir different than normal dairy that has so many hormones?Kefir still contains the hormones of cows and goats, evn if raw milk, right?
    • The bacteria and yeast in milk kefir grains will cause the coconut milk to thicken, and they will propagate throughout the coconut milk to provide a probiotic drink. However, the kefir grains require lactose and casein to reproduce and to thrive. So they must be refreshed every few batches by standing in dairy milk for 24 hours. Even with this refreshment, they will probably not reproduce much, if at all. Without the refreshment, they will ultimately weaken and die.

      Kefiring will not eliminate any hormones that have been added to the milk you use. The effect of kefir grains is to add bacteria to the milk, and to acidify the milk, causing it to coagulate.
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  • From Emily Charles at 8/28/2011 4:16 PM
    • I have been told by two different friends that kefer is so benificial. Because I am new to this product, explain why it so good and my understanding always has been that you need to refigerate milk so it does not sour. How and why are kefer & kefer cultures different? Thanks
    • Kefir is a cultured milk product. The kefir grains acidify the milk so it coagulates, and the bacteria and yeast that are in the grains multiply so that there is a large quantity of probiotics throughout the milk. (Probiotics are "beneficial bacteria" - the same kind that are in your intestines that help digest your food.)

      The reason you don't have to refrigerate the milk as it is culturing, and that you can leave it out a little after it's cultured, is that the beneficial bacteria in the kefir outnumber the bacteria that would make the milk spoil.

      We cannot make any comments or recommendations regarding the health benefits of kefir, but there is a lot of research available on the Internet that you might find useful, or you can speak with your doctor about how kefir might benefit you personally.
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  • From Rhonda at 8/29/2011 12:10 PM
    • Hi I've been making kefir from your grains for over a year in our raw goats milk and they have been growing and multiply lots along with making good kefir but the last little while they have gotten really slimy like boiled okra, and aren't growing anymore I have kept them at the same place so the temp should be the same and I put the yogurt in another room. Thanks for your help I love your website and products.
    • The slime you're describing can come from too many grains in the milk. It is probably kefiran, a clear, viscous polysaccharide that is produced by the grains, and usually assimilated into the milk or reabsorbed by the grains. It is part of what gives the kefir its thick, creamy texture.

      Try dividing up the grains into separate batches or even just removing some of them. 1-2 teaspoons of grains (sometimes less!) should be plenty to culture a quart of milk. You can also stir up the milk a few times while it's culturing. This distributes the kefiran better, and also helps give the kefir a smooth texture.
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  • From safira at 8/30/2011 10:57 PM
    • If i buy the milk kefir grains, is there any issue with only using them with goat milk? I never drink cow. will i need to "revitalize" the grains in cow milk at some point? thank you!
    • Kefir grains work wonderfully with goat milk. In fact, the first kefir grains, many hundreds of years ago, probably developed in an environment of goat milk, or milk from other mammals (yak, sheep, etc.) It's easier on the grains to keep them in the same kind of milk though. Don't switch back and forth between goat and cow milk.
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  • From Anna at 9/11/2011 2:26 PM
    • When I'm not culturing kefir, how do I store my kefir grains? In the fridge, out of the fridge, in milk, in
      water etc?

    • Milk kefir grains can be stored in a jar of milk in the refrigerator and will hibernate for at least a couple of weeks. However, they perform better when they are not regularly in and out of the refrigerator. You can make smaller quantities at one time if you'd prefer, so you can keep the grains working rather than storing them frequently.
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  • From Erin at 9/15/2011 10:53 AM
    • I purchased a packet of milk kefir grains from the local co-op and noticed after I had started rehydrating the grains with raw goat milk that the allergen information on the package says that the grains were processed in a facility that handles products containing soy and wheat. I'm wondering what those products are and whether you've ever known customers to have reactions due to cross-contamination? I know that's pretty unlikely but I was just very surprised to see that and curious as I deal with substantial food allergies.
    • We are required by law to make that statement on our products, since we use a commercial kitchen that may also be used to process soy and wheat products. However, our equipment is dedicated (used only for our products), and we don't produce any soy or wheat cultures ourselves. We are meticulous about cleanliness. The type of exposure to these allergens would be about the same as if you shopped in a supermarket that also sold wheat and soy products.
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  • From Lili at 9/17/2011 6:21 PM
    • I am making my kefir using fat-free cow milk for over a week. It still doesn't look and taste right. It looks like soft tofu, and when I touch it with a wood spoon, it was all smashed. It is not the same as the Kefir I bought from the supermarket at all. What is wrong with that?

    • The kefir you make at home may or may not be exactly like the kefir you buy at the store. Quite a lot will depend on the type of milk you use. Commercial kefir also sometimes has additives and thickeners than can change the consistency. The length of time you culture it, and the temperature, can also affect the final result. If you would like some help troubleshooting your kefir so it is more in line with what you're expecting, please email so we can assist you.
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Customer Reviews

Excellent product Review by knitmaiden

We have been using these cultures and absolutely love them. We make kefir everyday and use it for our smoothies.

(Posted on 9/29/2014)

Productive Little Grains Review by Susan

I purchased the Milk Kefir Grains and they began producing kefir in about four days. I am so glad I bought them! The kefir is so perfectly smooth and delicious. I had been worried because the weather had been a little cool, but these little grains have been working their magic. This was definitely money well-spent.

(Posted on 9/28/2014)

Delicious and fun Review by Darcy

My grains started producing kefir that I wanted to drink within 3 days. The kefir is delicious and mild. However, since I am making kefir only for myself and can't drink 4 cups every day, I have had to take some measures to slow the grains down. I am now using only a few grains and they culture about 12 oz of milk in 24 hours. The rest of the grains are stored in milk at the back of my fridge. Unless I find a friend who wants them, they will go to waste. Buying these grains is far less expensive than purchasing kefir from the supermarket, but I would have liked to see another, cheaper option to purchase fewer grains.

(Posted on 9/26/2014)

Great product and website Review by InTexas

I got these grains a year ago. It took close to a week to activate them. I only used a little milk at first as it wasn't active yet and I didn't want to waste it. Once it got going, it tasted too sour for me but it's either gotten sweeter or I've gotten used to it. I always add a banana with tart fruit to make it sweet. Or a spoonful of fruit jam. The kefir has a almost tingly feeling on your tongue, there are some bubbles in it - that and the yeast makes it taste different from yogurt. Also the store bought kefir is not comparable as it is more of a thin yogurt. I had tried that first and if it wasn't for the other reviews and all the info these people provide I wouldn't have known it was supposed to taste so different.
Also, my house tends to stay warm, especially in the summer and I struggled with making this at first as it seemed to go from nothing to a super sour thick stuff that I didn't care for. Then I read a review from a lady in Houston who cycles hers daily with counter time and fridge time. I tried it and it works for me. I put it out until it looks a little thick, then fridge. Then I filter it and get it in new milk and back on the counter. I use organic milk. I could never get it through the sieve I bought here once it got thick. I started using one I got from Walmart that has bigger holes. Maybe if you filtered while it's still thin it would work, but I found this works ok.
And also, it never gets very thick, more like buttermilk. And whiter than the milk you start with when done. And then you put it through the sieve and that breaks it up thinner so I've mostly used it in smoothies and as a buttermilk substitute. Today I made one with a banana, teaspoon honey, fistful squished raw spinach and handful of frozen blueberries. It was good, too sweet, but couldn't taste the spinach. I have also made some salad dressing out of it, recipes on the website.

(Posted on 9/20/2014)

Skimpy supply Review by Jeff

The quality seems to be good, but for the price, surely you could have included more kefir grains.

Response from CFH: The amount of grains included is sufficient to culture 1 quart of milk at least every 24 hours, indefinitely with care. This will provide nearly 2 gallons of milk kefir each week.

(Posted on 9/15/2014)

Excellent Review by Donna

A great learning experience! When I needed help I received support using the live chat and was able to solve my issue. After drying the grains, and starting over, the kefir is delicious.

(Posted on 9/13/2014)

Kefir Grains Review by Reets

Product arrived promptly. Directions clear and true to set-up time estimate. Taste delicious.

(Posted on 9/7/2014)

I am inexperienced using cultures, but think the product worked just fine. Review by M

The culture seemed very expensive for a few granules. The product worked well and was easy to hydrate. I find that I have more questions than available answers. I don't understand the doubling effects of the granules and am afraid I am mixing them in the drink. All in all I think the product certainly is more flexible than the powder product, more convent and less expensive in the long run.

Response from CFH: Please contact customer support with any questions. If answers can't be found on the site, we are often able to help find the answers or answer directly.

(Posted on 9/4/2014)

Quick start Review by Brant

Order arrived on time and in good condition. It is clear instructions in good website support. The culture took off like a rocket! Great product!

(Posted on 8/31/2014)

. Review by .

I have ordered milk kefir grains more than once and they die. I give up. It is super chunky and very difficult to separate at 24 hours. I work so I am not available to watch it every hour to see when it is ready. I will stick with the wonderful (forgiving) water kefir.

Response from CFH: Please contact customer support before discarding products. Many cultures are salvageable with some minor adjustments.

(Posted on 8/25/2014)

Works great! Tastes great! Review by Gord

My Kefir grains activated in one day and began producing a delicious drink that I can't get enough of!

(Posted on 8/21/2014)

Huge Disappointment Review by Katheryn

I've had these grains for a month and they never activated. The milk doesn't thicken at all. I've contacted Customer Service several times and they keep giving me new tricks to try, but nothing works. These grains simply aren't working. I've poured SO MUCH time and energy into the critters, trying to lovingly nuture them to life. I'm more mad about how much time and milk i've wasted on this venture than the eightteen bucks down the drain.

Response from CFH: Please contact Customer Support before discarding any cultures. Some cultures are salvageable with minor adjustments.

(Posted on 8/20/2014)

goforit Review by Satified

I am very pleased with my Kefir making process, especially when it cost around $3.18 at a local store.

(Posted on 8/4/2014)

Great Review by Ssunshine62

This is my first try with milk kefir. I have made several batches and have enjoyed them in my daily smoothies. Can't wait to try other gains.

(Posted on 8/2/2014)

Off and running Review by HKC

The grains are working great! It's so easy once you get them started which for me took about a week. Now I make 1 qt of kefir everyday which costs about $0.50/qt. v.s. $3-4 from the store. Yea!!

(Posted on 7/31/2014)

We love Milk Kefir - what did we ever do without it Review by Beach Gal

We received our grains and followed instructions to rehydrate them. Now we are making 4 cups every day. My grains haven't grown but that has not stopped them from producing kefir. My husband and I and our two dogs drink the whole 4 cups daily. My husband has been teasing me about my "experiment" but he is now admitting that he feels so much better and our two dogs beg for kefir and are running around like young dogs. Their coats are nicer and their eyes brighter and they have more energy. The strange thing is that both my husband and I are lactose intolerant. These nifty little grains feed on the lactose and we have had no problem with the lactose at all. I am so happy that Cultures for Health offer these fantastic kefir grains. For the initial price along with the cost of milk, you can have a lifetime of healthy drink. We drink it straight, we put it in smoothies, we add fruits and juices. The possibilities are endless.

(Posted on 7/29/2014)

Milk Kefir grains Review by Janie

Mine had a slow start- might be the temp in the house and it is multiplying very slowly (I use organic milk) but what I have there is very healthy looking grains..Oh and did I say I am ADDICTED to Kefir! Can't seem to get enough...I love it...

Response from CFH: Please contact Customer Support before discarding any products. Some cultures can be saved with minor adjustments.

(Posted on 7/27/2014)

such a small amount Review by jen

I received a very small amount - 1 teaspoon re-hydrated- it took forever to do more than 2 cups of milk.

Response from CFH: One teaspoon of milk kefir grains are all that is needed to culture up to 4 cups of milk. Please contact us before discarding any cultures. Some cultures may require a minor adjustment.

(Posted on 7/23/2014)

Fabulous Review by Jim

I have ordered this product twice. Both times the grains activated within a couple of days, and started producing wonderful tasting kefir. Our family is very happy with it!

(Posted on 7/21/2014)

Very good product. Review by GM

I first ordered milk kefir grains and they did not work right, they must have been bad because all I made was rotten milk. After speaking to customer service, I received some new grains along with detailed instructions and this kefir has turned out to be wonderful. It has worked great from the start and we have made some good kefir that my family loves.

(Posted on 7/18/2014)

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