1. Soak soybeans in clear water for 3 hours, not too long. Wash the soaked soybeans and remove the bad ones. Add100g soybean and 900ml water to make soybean milk.

2. Filter the squeezed soybean milk with gauze to remove bean dregs. Boil the soybean milk three times, then turn off the heat.

3. Filter the squeezed soybean milk with gauze to remove bean dregs. Boil the soybean milk three times, then turn off the heat. Gypsum will precipitate quickly when mixed with 100 ml water.

4. After turning off the fire, the soybean milk is cooled to 95 degrees. Every time I cook, I stir it for a minute, and then I rush into the prepared gypsum water and let it stand. Stop stirring. After fifteen minutes, the tofu will be ready. Put the tofu in a tofu box covered with a tofu cloth and press it for 15 minutes. If you want to eat something hard, press it for a long time.