For those that don't need to be dried, the ratio of bean dregs to corn flour (grain flour, sorghum flour, wheat bran and potato flour) is 8: 2, and the addition ratio of Yifunong feed starter is 1-2‰. After mixing, it is best to control the water content at about 60% (that is, grab a handful with your hands, and water will be printed from your fingers, but it will not drip out). It can be fed after sealed fermentation for three days.