How long does it take to make kefir?
A. Kefir generally takes 12-48 hours to form. The exact amount of time will vary depending on environmental factors the most important of which is temperature. Cold retards the fermentation process so kefir will form more slowly in a cold area (and can be all but stopped by placing the grains in milk in the refrigerator). Heat speeds the process so kefir will form more quickly in a warm area and will be more likely to over-culture. We recommend standard room temperature whenever possible. Allowing the grains to remain in milk longer than 48 hours risks starving the grains and potentially damaging them.
