180 Celsius for 30 minutes
Spagetti with cheese, pepper, and pork fat!
Good edible mushrooms, try it
Use the Kefir Grains, not the powder. Grains can be used forever. Kefir grains work best when cultured in back-to-back batches, as both water and milk kefir grains require a constant source of food. Although grains require a little more maintenance than a powedered kefir starter culture, they can be used to produce kefir on a daily basis.