Authentic Kefir Made at Home with Live Kefir Grains
Stop buying expensive, pasteurized supermarket drinks. Brew authentic, probiotic-rich milk kefir, sparkling water kefir, and kombucha in your own kitchen with certified organic living cultures.
Our live milk kefir grains and fresh water kefir grains are cultivated daily in small batches, ensuring a lifetime supply of potent, self-multiplying probiotics for your kitchen.
Choose Your Living Fermentation Culture
Each living culture offers distinct probiotic strains and flavor profiles. Explore our three core cultures below or order directly from our Benelux & European partner webshop.
Live Milk Kefir Grains
Originating from the Caucasus Mountains, live milk kefir grains transform fresh cow, goat, or sheep milk into a creamy, tangy probiotic drink containing over 35 beneficial bacterial and yeast strains.
100% live milk kefir grains (never dried powder) • Multiplies every batch for a lifetime supply • Consumes up to 99% of lactose in 24 hours
Fresh Water Kefir Grains
Translucent, crystal-like fresh water kefir grains turn mineralized sugar water and dried fruit into a refreshing, naturally sparkling probiotic soda that is 100% dairy-free and vegan.
100% dairy-free & vegan probiotic culture • Healthy homemade alternative to commercial soda • Ready to drink in 24 to 48 hours
Live Kombucha SCOBY
Crafted by fermenting sweet black or green tea with a live Symbiotic Culture of Bacteria and Yeast, homemade kombucha delivers organic acids, antioxidants, and lively natural carbonation.
Thick, vigorous SCOBY with acidic starter liquid • Grows a new baby SCOBY with every brew • Endless fruit & ginger flavor combinations
Fresh Organic Cultures Direct from Our Cultivation Hub
Whether you are a beginner or an experienced fermenter living in the UK, Germany, France, Scandinavia, Belgium, The Netherlands, or anywhere across Europe, our partner webshop Kefirshop.eu dispatches certified organic living cultures backed by expert guidance and complete brewing support.
Freshly Harvested Daily
Our living cultures are actively fed and harvested fresh each morning in food-grade, leak-proof pouches with active nutrients so they arrive vibrant and ready to brew.
100% Live Arrival Guarantee
Every culture is backed by our full live arrival and growth guarantee. If your grains do not ferment successfully, we replace them immediately free of charge.
Secure & Easy Checkout
Checkout effortlessly in Euros using iDEAL, Bancontact, Apple Pay, PayPal, Klarna, or Credit Card with instant order confirmation.
English Guides & Support
Every order includes step-by-step fermentation instructions tailored to whole milk, organic cane sugar, and tea, plus dedicated email customer care.
Our Kefir Story — “It started with a jar on my father’s counter…”
Hi, I’m Lydia. For me, home fermentation is not a passing trend—it is a lifelong family tradition that began decades ago in my father John’s kitchen. Long before probiotic drinks appeared in health stores, I watched his live milk kefir grains turn fresh milk into a creamy, vibrant daily tonic.
We founded Kefirgrains.eu to share those same resilient, heirloom kefir grains and English fermentation guides with home brewers across Belgium, The Netherlands, and Europe, so you can enjoy pure, living nutrition every single day.