1. Yogurt Making and Refrigeration 2. Automatically switchover from fermentation to refrigeration 3. Defrost function Commerical Yogurt Ferment Machine1. Plug in, the machine is ready ... wine makingFermentation temperature for yogurt, natto, rice wine: 42,42, 30 degreeFermentation time for yogurt, natto, rice wine: 4-6-8 ...