Kefir Fermenter: Cage with Kefir Grains (20 G) 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 after incubation at room temperature (higher than 70F recommended) or 10-14 hours at 80-95F. Cage contains around 20 grams of Kefir Grains. It is enough for making from 650 ml (22 oz) to 1500 ml (40 oz) of fresh delicious Kefir during 20-24 hours at room temperature.