1, soybean soaking needs 12 hours. After a long time soaking, so that the soybean full fermentation, destruction of cell walls, beans in the protein and other nutrients can be better absorbed and utilized by the human body, but the summer temperature is high, the soaking time is long, soybean easy to taste spoilage, it is recommended to put into the refrigerator to soak, inhibit bacteria and other microorganisms breeding.

2, soybean soaking more than 12 hours, the pulp texture is more delicate, nutrients are more easily absorbed. The water used to soak the soybeans is not recommended for soybean milk. On the one hand, a long time to soak soybean water, will breed more bacteria and other microorganisms; on the other hand, soaked beans water, water quality is not good enough, if used directly to beat soybean milk, soybean milk taste is not good, it is recommended to re-exchange pure water or clean drinking water to beat soybean milk is appropriate, soybean milk juice will be more mellow and sweet good drink.