How many kilograms of tofu can one kilogram of beans make? How come? What is the profit?

A kilo of soybeans can produce brine, and old tofu is about 3 kilos. If it is profitable, a catty of soybeans can make a profit of 4-5 yuan. The production process is as follows.

1, tofu production process: soak soybeans in water, swell and soften, grind them into soybean milk, then filter off the bean dregs and boil them. At this time, protein particles in soybean are surrounded by water and keep moving, so they can't gather together to form a "colloid" solution. To turn colloidal solution into tofu, you must order brine. Bittern or gypsum is used to ignite bittern. Brine mainly contains magnesium chloride, and gypsum is calcium sulfate, which can make dispersed protein particles quickly gather together and become shiny bean curd. Squeeze the water out again, and the tofu brain will become tofu.

2. After the soybeans are soaked in water and ground into slurry, a halide will be put in when cooking. The combination of the two can lock up a lot of water, so that a catty of dried beancurd can make tofu much larger than its weight. Of course, this is related to the amount of halogen added and the process of pressing water when making tofu. The water content of so-called tender tofu is definitely heavier than that of old tofu.

3. Tofu is a green and healthy food invented by China alchemist and Huainan Wang Liu An. Today, it has a history of more than 2 100 years and is deeply loved by our people, neighboring countries and people all over the world. Up to now, it has the characteristics of complete varieties, various patterns, unique flavor, simple manufacturing technology and convenient eating. It has the effects of high protein and low fat, and lowering blood pressure, blood lipid and cholesterol. It is a delicious food that is eaten raw and cooked, suitable for all ages, and has a long life.