Add the kefir grains to a large, sterilised glass jar. Add the milk.
Cover with a breathable lid such as a muslin cloth, secured in place with a ribbon or elastic band, and place in a dark cupboard for 24–48 hours (the longer you leave it the stronger it is, and for obvious reasons it takes longer to ferment in winter than in summer).
Become a Premium Member to access this recipe
Unlimited, ad-free access to hundreds of the world’s best cookbooks
Over 150,000 recipes with thousands more added every month
Recommended by leading chefs and food writers
Powerful search filters to match your tastes
Create collections and add reviews or private notes to any recipe
No reviews for this recipe