1. Motor aging (change the motor or buy a new soymilk machine).

2. Passivation of blades (replacement of blades).

The beans you used are different from those you used before (change beans).

4. The ratio of beans to water is not suitable (1: 15 is more scientific).

5. I used to soak beans, but now I don't (try again).

6. Abnormal voltage (avoid using high-power electrical appliances at the same time, and find professionals to deal with the voltage problem at home before use).

7. The machine tilts when working (flat soymilk machine).

8. The temperature of water is much higher than before (the process of water heating is also indirect soaking beans).

9. The use environment changes (such as drastic changes in air pressure). ).