Kefir Fermenter: Container for Kefir Grains - for 0.35 L Jar Cage is a "house" for soft and delicate Kefir Grains. It makes manipulations with Kefir Grains simple and reliable. It can be used with glass/jar of your choice. Cage + Kefir Grains can be reused hundreds of times. Dramatically simplify homemade kefir process. Just put Chamber with Kefir Grains in a jar of your choice, pour milk and drink fresh kefir in 20-24 hours. Say NO to strainer, spatula, dish washing and white spots. Simple. Easy to use and re-use: just fill with milk and drink after 20-24 hours at room temperature or 10-14 hours at 80-95F. Container with holes designed for around 10 - 15 grams of Kefir Grains. It is enough for making from 250 ml (8.5 oz) to 350 ml (12 oz) of fresh delicious Kefir during 20-24 hours at room temperature. Container doesn't have kefir grains. Customer is recommended to purchase it separately or use grains you already have.