What, grinding bean curd?

Grinding bean curd's grinding method is as follows:

1. First, soak soybeans in water for 2 hours.

2. After the soybeans are soaked, take out the prepared stone mill or juicer.

3. Then put the beans in the hole of the stone mill.

4. Finally, turn to a stone mill to grind the bean juice, and add a proper amount of water in this process.