Operating steps:

1. Draw a cross knife on one side of chestnut flat with a knife.

2. Put a proper amount of water (the amount of water should not exceed chestnut skin) and salt in the pot, and turn off the fire after the fire boils.

3. Add raw chestnuts and soak for 15 minutes.

4. Take it out and put it in a container for cooling.

5. Peel chestnuts along the previously cut cross knife edge.

6. Chestnut kernels can be completely taken out.