How to make freshly ground soybean milk at the roadside stall?

Generally, it is made of soybean milk machine, as follows:

Preparation materials: soybean: 100g, water: appropriate amount.

1. Soak the beans in water.

2. After soaking overnight, the beans swell and can be ground.

3. Put the beans into the soybean milk cup and add water.

4. Cover the lid and press the wet bean key to start grinding beans.

5. When you hear the prompt sound of the soymilk machine, the soymilk will be ground.