Soak the soybeans overnight in a pot of water. The beans should be completely covered.
The other day, drain the water through a sieve and rinse the soybeans with water
Place the soybeans in a container with 1.5 l of water and puree with a blender or hand blender.
Then place in a large sieve a tight cloth or even a nut milk bag and pour in the pureed mixture.
Squeeze very firmly so that the soy milk comes out.
Pour the soy milk into a very large pot and bring to a boil. Make sure that it does not boil over.
Stir the salt and lemon juice into the boiled liquid.
Simmer, stirring constantly, until flakes form.
Then remove from heat and let stand for about 10 - 15 minutes.
Again, cover a pot with a strainer and a straining cloth.
Pour the soy mixture into it and squeeze it very well.
Subsequently, the tofu should be pressed. To do this, place either a tofu press or a heavy object on the straining cloth with the mass.
Press for about 15 - 20 minutes. After that, the tofu is ready and can be eaten.