Let me talk about some superficial experiences. There are two traditional ways to make tofu with soybean milk. First, wash the soybean milk: filter the soybean milk, remove the bean dregs, boil the soybean milk for 5 minutes, leave the fire and let it cool slightly. When the temperature of soybean milk drops by about 5 degrees Celsius, put the ground gypsum water or brine into a wooden bucket or basin, shake it evenly, wash the soybean milk into the gypsum water or brine, and cover it with clean gauze or white button cloth to keep warm.
The ratio of gypsum to soybeans is generally: a catty of soybeans, put 3 yuan of gypsum, but the water in different places is different, and the amount of gypsum will be different. After washing, the soybean milk will solidify, and the solidified tofu flower will be pressed out of the grid, then cut into pieces, moved to clean water for cooling, and gypsum will be removed. This kind of tofu is processed. The second method is pulping: grinding, filtering and boiling are the same as the first method.
After the cooked soybean milk is out of the fire, a small amount of soybean milk will be used. The practice is to stir the soybean milk with a wooden spoon to make it rotate, and slowly add gypsum water or salt water to the soybean milk, with a small flow rate. When you see tofu the size of mung beans, stop adding gypsum water or salt water immediately and stop stirring soybean milk. After the soybean milk is solidified, cover it with a cloth to keep warm. The following process is the same as the first one.
The second method: "point paste method" mainly depends on experience to observe the appearance of tofu pudding. I prefer the first method. However, the first method also has the difference between old and new soybeans. The yield of new soybean is high, the yield of old soybean is low, and the amount of soybean milk is different. Of course, the amount of gypsum or brine is different. When we don't know whether the water source and soybean are new or old, we should choose the pulping method.
I don't know if you understand what I said.