According to Query 39, the ratio of edible gelatin to water is 1: 3, that is, edible gelatin 1 serving, 3 portions of cold water, soaking for 40-60 minutes, and then indirectly heating the gelatin until it is dissolved. Gelatin is a powerful protective colloid with strong emulsifying ability. After entering the stomach, it can inhibit protein coagulation of milk and soybean milk caused by gastric acid, which is beneficial to food digestion.