Generally speaking, when the fermentation temperature is 20 °C-25 °C, the fermentation period is 15-20 days; When the fermentation temperature is 25 °C-30 °C, the fermentation period is about 12; When the fermentation temperature is 30 °C-38 °C, the fermentation period is about 7 days. Brewing equipment to check whether fermentation or fermentation is complete, you can use your hands to stir on the surface of the water, the top is water, below is corn, the water is clear, the color is dark brown, that is, the fermentation is good. You can also light the lighter, put it in the tank near the surface of the water, and the fire is out to ferment, and vice versa. Hope it helps!
