Welcome to Kefir.biz the reference web for kefir.

Kefir is a drink made from the fermentation of milk or sweetened fruit juices, prepared using “kefir grains”, a leaven consisting mainly of lactic acid bacteria and yeast. The resulting drink is slightly carbonated. As a living food, providing certain trace elements and micro-organisms, it is considered a probiotic and used for its dietary properties (intestinal flora, transit, immune system, etc.).

It contains a small amount of alcohol compared to the most common fermentations, the alcoholic degree is around less than 1%. It can vary according to the length of fermentation and the method of preparation (aerobic or anaerobic), but when the fermentation is too long (more than three to four days), the high acidity makes the product unfit for consumption. These long fermented “strong” kefirs can be used as natural preservatives.

The name “kefir”, which designates the product obtained, should not be confused with “kefir grains”, which are amalgamations of micro-organisms that are used to seed the drink.

Bestselling Products


Kefir Starter Culture | Cultures for Health | Easy To Maintain Kefir Culture Powder | Non GMO, Gluten Free | May Be Used With A Dairy Or Water Base

  • NO MAINTENANCE REQUIRED KEFIR POWDER STARTER: kefir starter culture powder doesn’t need any maintenance at all; simply store unopened packets of freeze dried powdered kefir starter culture in the fridge until you’re ready to use them
  • RE-USE THE POWDERED KEFIR STARTER SEVERAL TIMES: you can re-use the Cultures For Health kefir culture powder to make kefir several times without a loss in nutrients or health benefits
  • GLUTEN-FREE AND NON-GMO KEFIR POWDER STARTER: make your own healthy kefir with absolute peace of mind using this kefir starter culture powder as it contains only the right ingredients
  • VERSATILE FREEZE DRIED POWDERED KEFIR STARTER CULTURE: you can choose a dairy or water base - just ensure that you stick to the same base for subsequent batches
  • GET MORE THAN JUST YUMMY AND HEALTHY KEFIR: when you buy Cultures For Health kefir culture powder, you not only make great-tasting kefir, you can also get FREE access to our 155-page Kefir ebook with a treasure trove of easy kefir recipes, articles and how-to videos

1 TBSP Organic Milk Kefir Grains and ebook “Milk Kefir Unleashed by Thomas Egbert” - Fresh Live Active Probiotic Starter Cultures

  • QUALITY GUARANTEE: Our kefir grains are guaranteed to arrive fresh and alive, or we’ll send you a replacement free of charge. Your purchase is RISK FREE! | Enough for the whole Family
  • PREMIUM ORGANIC GRAINS: Our grains have NEVER been dried or stored in the fridge or freezer. They are shipped to you fresh in a sealed, food grade BPA-free container (not a sandwich baggie like many other sellers use!).
  • COMPREHENSIVE TUTORIALS: Your purchase includes unlimited email support, so you can ask us your fermenting questions anytime. You’ll also get a BONUS 39-page eBook with images, video tutorial, step-by-step instructions and delicious recipes to create the best tasting kefir again and again. You’ll have our full support in your kefir journey!
  • SAVE MONEY: Your grains can be reused over and over, and will produce plenty of kefir for the whole family. It’s exponentially cheaper than buying kefir at the grocery store!
  • HEALTHY PROBIOTICS - We feed our kefir grains fresh organic milk every day. We carefully cultivate our grains to contain as many strains of healthy bacteria as possible, giving you well balanced probiotics in every sip.
Lane Labs - Kefiran, Kefir Nutrient + 50 Billion Active Probiotic Cultures, Gluten Free, Vegan, Supports Optimal Digestive Health* (60 Vegetable Capsules)
47 Reviews

Lane Labs - Kefiran, Kefir Nutrient + 50 Billion Active Probiotic Cultures, Gluten Free, Vegan, Supports Optimal Digestive Health* (60 Vegetable Capsules)

  • SUPPORTS HEALTHY DIGESTION: Kefir or (Kefir Grains) have been around for centuries, with legends claiming that Kefir was the key to vigor and longevity. Supports healthy digestion, intestinal health and overall well-being.*
  • NO GLUTEN, N0 LACTOSE & VEGAN: Kefiran is a superior probiotic formula with over 50 billion active probiotic cultures (at time of production) to optimize digestive health. For hundreds of years, kefir milk has been deemed one of the world’s oldest probiotics.
  • THE BEST OF KEFIR IN A CAPSULE: KEFIRAN offers the best of the traditional kefir drink, but in an easy-to-swallow veggie capsule. KEFIRAN gives you 20mg of kefiran, the kefir polysaccharide PLUS 50 billion active probiotic cultures in a daily serving of just two capsules.
  • EASE TO ENJOY: The most common complaints about traditional Kefir drinks are their unusual taste and texture; the dairy and gluten in Kefir also are a problem for some.
  • THE LANE INNOVATIVE DIFFERENCE: Our key ingredients are produced in countries with advanced food technologies and regulatory oversight. We continuously test for label claim potency, pathogens and heavy metals.

Yogourmet Freeze Dried Kefir Starter, 1 oz. box (Pack of 2)

  • Total of 12 starter packets
  • Can be used with cow, soy or goat's milk
  • No appliance needed
  • Each box makes 6 quarts of kefir

1/4 Cup Live Organic Water Kefir Grains (Tibicos) Natural Probiotics

  • ONE 4X6 BREWING BAG plus A Downloadable PDF File with Recipies , Uses and Care
  • Ability to Create a natural reoccurring source of Potassium, Magnesium, Iron, variety of enzymes and organic acids, and a range of B vitamins, and folic acid and a myriad of nearly 40 strains of the best probiotics
  • 1 Florida Sun Kefir Brewing Bag
  • Mayan Origin

Water Kefir Grains | Cultures for Health | Organic, Gluten Free, Non GMO

  • MAKE YOUR OWN KEFIR USING ORGANIC WATER KEFIR GRAINS: water kefir is a cultured drink made by adding kefir grains to coconut water, sugar water; it’s brimming with a host of nutrients and probiotics (a group of microorganisms that benefits the gut, heart, mental health, among others); give yourself and loved ones a health boost by making your own water kefir with Cultures For Health live dehydrated water kefir grains
  • RE-USE HEIRLOOM LIVE WATER KEFIR GRAINS MANY TIMES WITHOUT LOSS IN POTENCY: the live dehydrated water kefir grains from Cultures For Health are heirloom grains, meaning that they’ll not lose potency even if you were to re-use them many times; unlike conventional kefir starters, this heirloom water kefir grain has a structure that protects it from deteriorating over time; so you can use the same batch of heirloom grains to make water kefir with no loss in health benefits time and again - great sa
  • GLUTEN-FREE, NON-GMO AND THIRD PARTY TESTED SAFE WATER KEFIR GRAINS KIT: make your own healthy coconut or juice kefir with absolute peace of mind using these kefir water grains as they contain only the right ingredients and nothing artificial; plus, our coconut/water kefir grains have been tested safe by a trusted third-party laboratory, giving you additional assurance
  • EASY-TO-USE LIVE ORGANIC WATER KEFIR GRAINS: it’s a cinch to be making fresh, probiotic-packed water kefir at home using our live water kefir grains; every batch takes only a few minutes to prepare, and thereafter, you can continue making your own delicious water kefir every 24 hours using by using the grains again again; detailed instructions are available at culturesforhealth.com/kefir
  • VERSATILE CULTURES FOR HEALTH KEFIR ORGANIC WATER GRAINS: when you buy Cultures For Health water kefir grains, you not only make great-tasting kefir, you can also get FREE access to our 155-page Kefir ebook with a treasure trove of easy kefir recipes, articles and how-to videos; go on, unleash your creativity in water kefir

VIVO Kefir Starter with Probiotics (5 boxes) Makes up to 30 quarts of kefir

  • Make your own kefir at home
  • 100 billion live and active bacteria per 100 g serving!
  • Makes up to 30 litres of kefir
  • You can make kefir with Lactose Free, Cow, Goat, Sheep & Soy Milk

Masontops Complete Kefir Making Starter Kit - With Plastic Strainer Cap, Starter Fermentation Grains & Specialty Sugar

  • THE PERFECT KEFIR MAKING SYSTEM FOR BEGINNERS: Make real probiotic-rich water kefir in your own kitchen with this easy home fermenter kit. You'll get the dehydrated water kefir grains, activating cane sugar, and a 2-position kefir cap lid.
  • SIMPLE STEP-BY-STEP KEFIR FERMENTATION: This kefir making system gives you everything you need to make producing homemade kefir simple and easy. Measure the provided live kefir grains in the cap and add water and the activating sugar. It's that easy!
  • UNIQUE 2-POSITION LID: Masontops kefir caps have a twist mechanism that allows the lid to be open during fermentation and closed for storage once it quickly brews and is ready to drink. With two caps, you'll always have your tasty probiotics on hand.
  • EASY-POUR STRAINING LID: Kefir Caps have a built-in strainer in the bottom half of the lids, so you can simply pour out the fermented beverage to drink (and, if you like, to flavor!). The grains will stay in the jar ready to make more healthy kefir!
  • FROM THE MASON JAR ACCESSORY EXPERTS: Trust Masontops to design and manufacture the finest mason jar accessories for home-brewing healthy probiotic-rich kefir and kombucha, fermenting and pickling veggies - even growing your own nutritious sprouts!

AVEENO Kefir Probiotic Blend Conditioner 12oz

  • Oat is the first ingredient in Aveeno Kefir Probiotic Blend Conditioner. Soothe your scalp and nourish your strands with this moisturizing conditioner that promotes a balanced scalp and healthy-looking hair from root to tip.
  • Scalp restoring moisture. Sulfate-free conditioner helps balance scalp's microbiome to help nourish hair and scalp.
  • This formula is infused with probiotic kefir extract, and is designed to help promote restorative moisture. Sulfate free conditioner, free from dyes and parabens, making it safe for all hair types including color-treated hair.
  • We are inspired by nature; our oat is sourced from a small town mill where pride and quality go hand and hand and we do not test our products on animals.
  • Aveeno is a trusted household brand established in 1945 and is best known for its line of skin soothing products, where oat's natural soothing properties are put to work in body, face and scalp applications.

Live Milk Kefir Grains - Live Probiotic Culture

  • Kefir Grains shipped in plastic jar with muslin bag, includes instructions by Mr. & Mrs. Kefir!

Kefir Starter Cultures - Pack of Freeze-Dried Culture Sachets For Creamy and Mild Milk Kefir (3 sachets)

  • One sachet is enough to make 1 litre of thick creamy, extra mild in taste milk kefir and recultured many times
  • Can be set at room temperature. No need of specific appliances, yogurt makers etc.
  • Contains blend of live active bacteria like Lactococcus lactis ssp.cremoris, Lactococcus lactis ssp. Lactis, Lactococcus lactis ssp. Lactis biovar diacetylactis, S. thermophilus, Lactobacillus kefir, Lactobacillus parakefir, Saccharomyces cerevisiae, Kluyveromyces lactis.
  • Pure bacterial blend of cultures made in laboratory environment away from additives, maltodextrin, gluten and GMO. Optimises digestion, bowel movements and intestinal flora
  • Extra mild in taste, suitable for healthy and delicious smoothies

Kombucha, Kefir, and Beyond: A Fun and Flavorful Guide to Fermenting Your Own Probiotic Beverages at Home

  • Lewin, Alex (Author)
  • English (Publication Language)
  • 208 Pages - 10/29/2019 (Publication Date) - Fair Winds Press (Publisher)

Water Kefir Grains

  • 1/4 CUP EASY TO GROW LIVE WATER KEFIR GRAINS with step by step instructional videos on our website and all social media outlets.
  • Our KEFIR GRAINS are the HIGHEST QUALITY kefir grains you can get online anywhere!
  • These WATER KEFIR GRAINS are 100% ORGANIC. Brew your own healthy kefir.
  • KEFIR WATER GRAINS are VEGAN and a great kefir starter for the day. These water kefir grains are PROBIOTIC RICH and a great way to start the day with a happy gut.

Poseymom Original Live Water Kefir Grains

  • Always Guarantee all my product
  • All Instructions on my web page
  • Water Kefir grains will last forever and multiply with proper care
  • Fresh and healthy

Organic Probiotics 100 Billion CFU - Dr. Approved Probiotics for Women, Probiotics for Men and Adults, Complete Shelf Stable Probiotic Supplement with Prebiotic & Digestive Enzymes; 30 Capsules

  • 100 BILLION CFU GUARANTEED, SHELF STABLE, 34 STRAINS: Our probiotic contains a guaranteed shelf stable 100 BILLION CFU & 34 STRAINS per serving. We saw a need for high-quality supplements that actually work and stand by their claims, our probiotics comes with a MONEY BACK GUARANTEE. Professional grade NON-GMO vegan probiotics with NO: Binders, Soy, Gluten, Milk, Egg, Wheat, Peanuts, Shellfish, Additives, or Preservatives.
  • 100% RAW LIVE PROBIOTICS, ORGANIC PREBIOTICS AND DIGESTIVE ENZYMES: Our DR FORMULATED probiotic is made with genuine prebiotics, digestive enzymes, and probiotics based on clinical research. A complete once daily probiotic supplement for ultimate digestive health naturally helps to support the free stomach digestive environment biotics condition, and supports the natural stomach balance.
  • DOCTOR FORMULATED PROBIOTIC SUPPLEMENT: Our one-a-day whole food probiotic with digestive enzyme & prebiotic fiber is Dr. formulated for gut health, gas relief, bloating relief, constipation eliminator, leaky gut & flora, digestive health solution, weight loss, immune system, womens prenatal, yeast relief, sleep, intestinal health fortify, candida, colon defense, diet, mood thrive, metabolism, clear bowel, kidney care, dental, pregnancy, morning complete, vitamins, small & large intestine renew
  • BEST PROBIOTICS FOR ADULTS WITH 34 STRAINS: Our prebiotics and probiotics are HIGH POTENCY and intended now for use by you a female and male adult. Acidophilus probio with pre-biotic pills including 34 symbiotic good strains, fungus, & absorb cultures. Lactobacillus acidophilus, casei, paracasei, salivarius, plantarum, bacillus, bifidobacterium lactis, bifidum, longum, saccharomyces, fermentum, boulardii, and more see full ingredients below. Easier to take than powder, gummies, liquid, & pearls
  • ASSURED STANDARD OF QUALITY & SAFETY: Made in the USA in a UL, GMP certified registered facility labs. Probiotic for women, probiotic for men, probiotic for adults - Gives 100 Billion CFU - More than products of 3, 5, 10, 13, 15, 40, 45, 50, 60, 70, 80 Billion CFU! Shelf stable non refrigerated platinum pro-bio-tic, pure no refrigeration pro-biotics, Lactobacillus acidophilus, ultra vegetarian probotics activated hyperbiotics supplement assist advantage.
Jarming Collections Complete Kefir Starter Kit/Kombucha Fermentor Kit-1 Mason Jar Wide Mouth-Plastic Storage Lid - HIC(4 Inch) Nylon Mesh Strainer-Cotton Cloth Cover and Wood Spoon (Half Gallon)
6 Reviews

Jarming Collections Complete Kefir Starter Kit/Kombucha Fermentor Kit-1 Mason Jar Wide Mouth-Plastic Storage Lid - HIC(4 Inch) Nylon Mesh Strainer-Cotton Cloth Cover and Wood Spoon (Half Gallon)

  • Kefir Set Includes 1 Wide Mouth Glass Mason Jar 1 Plastic (BPA Free) Wide Mouth Storage Lid 1 HIC 4 Inch Nylon Mesh Strainer Includes 2 Coffee Filters and 2 Rubberbands
  • Durable HIC 4 Inch Double Ear Very Fine Mesh Nylon Strainer is the Perfect Size for Straining Kefir Grains Made of 100% Nylon no Metal.
  • This Sturdy Fine Mesh Strainer is BPA Free. Sits Securely on Bowls, Measuring Cups etc. to Keep Both Hands Free for Other Tasks Like Pouring.FIne Mesh Drains Liquids Removes Smaller Bits. This Non Reactive Material is Perfect for Use with Foods and Liquids that React to Metal.
  • Jar and Strainer are Dishwasher Safe for Easy Cleaning (Strainer top rack only)
  • Starter Kit Includes 1 Cotton Cloth cover and 2 Rubber Bands which Cover the Jar During Fermentation Proctecting it from Outside Elements.

Poseymom Quality Water Kefir Grains Starter

  • this starter 1/4 cup will grow enough for a family in no time
  • Can Grow in different sugars
  • Downloadable PDF File with Recipes , Uses and Care
  • Water kefir brews in as little as 48 hours

Organic, Raw, Vegan Coconut Water Kefir (2 Bottles)

  • Coconut Water Kefir is an Organic, Unsweetened, Vegan, Non-GMO, Soy-free, Dairy-free, and Gluten-free Probiotic.
  • Fermented coconut water is an efficacious vegan alternative to dairy kefir. Coconut water kefir is lower in sugar and has higher probiotic counts.
  • Our coconut water kefir contains 15-30 billion CFUs per 2oz.
  • Ingredients: Organic young coconut water, probiotic cultures.
  • Keep Refrigerated. While we always pack and ship your order with plenty of ice to keep it cool during transit, you should plan to receive your package and refrigerate the bottles as soon as possible to avoid temperature abuse. Please track your package through transit and collect from your front step, mail room, or parcel locker upon delivery. To avoid weekend shipping delays, orders to the coasts should be placed earlier in the week.