You don't need to cook the soybeans first. The specific method of soybean milk is as follows:

The materials that need to be prepared in advance include: 3g of soybeans, 3g of black beans and 2g of green beans.

1. Step 1: Soak the prepared beans in water for 8 hours.

2. Then put the soaked beans into the soymilk machine.

3. Put a proper amount of water into the soymilk machine, as shown in the figure below.

4. Then press Wet Bean to start work automatically.

pour it out in about 5 or 4 minutes, and it's done.