1. Raw material treatment. Take 5 kg of soybeans, shell them, sieve them, wash them and soak them in a water tank for 4-5 hours in winter and 2.5-3 hours in summer. The soaking time must be well controlled and not too long, otherwise the pulp head will be lost and tofu will not be made.

250 grams of raw red gypsum (20-30 grams of gypsum per kilogram of soybeans) is baked in the fire. This is a key process, and the roasting degree of gypsum must be mastered (just break gypsum with a hammer, as it has just burned its heart). Gypsum is too raw to be used; Too ripe not only can't make tofu, but also soybean milk smells like rotten chicken shit.

2. Grind the beans and filter the pulp. Soak soybeans, take them out, and grind them according to the ratio of 6 kg of water per kg of soybeans. Put the ground pulp into a bag (made of tofu cloth), pinch the mouth of the bag and squeeze out the soybean milk. After the soybean milk is squeezed, you can open the bag, add 3 kilograms of water, and continue squeezing after mixing evenly. General bean dregs 15 kg, soybean milk about 60 kg. Don't let bean curd residue mix into soybean milk when squeezing pulp.

3. Boil the pulp and order it. Pour the squeezed puree into the pot and boil it, without covering the pot cover, and skim off the foam on the surface when cooking. The fire should be big, but not too big, in case the soybean milk overflows after boiling. Boil soybean milk until the temperature reaches 90 ~ 1 10℃. Insufficient temperature or too long time will affect the quality of soybean milk.

Grind the burnt gypsum into powder, mix it with a bowl of clear water (about 0.5 kg) into gypsum slurry, pour it into the soybean milk that has just been scooped out of the pot, and gently stir it with a spoon. After a few minutes, the soybean milk condenses into tofu.

4. make tofu. In about 15 minutes, gently scoop the tofu flower into a wooden tray (or other container) covered with cloth with a spoon. When the beancurd is full, wrap it in cloth, cover it with wooden board, and press 10 ~ 20 minutes, and it becomes water tofu.

5. Make dried tofu. Put the bean curd flower into the wooden pallet with a spoon, wrap it in cloth, cover it with wooden boards, pile up stones, and press it fully to make dried bean curd. General 10 kg soybean can make 25 kg dried bean curd.