First, cutting yam is not a prop made of metal (stainless steel can also be used), but a knife made of wood or material.

Second, the cut yam is soaked in cold water of salt water or oil vinegar, or it can be soaked in lemonade. The yam comes out when it is cooked.

Third, you can also fry yam with water first.

Fresh-keeping method of yam:

1. After the yam is peeled and cut into sections, it is packed in plastic bags according to the consumption each time. Immediately after sub-packaging, put it in the upper layer of refrigerator for quick freezing.

Second, the yam does not need to be thawed when eaten, and the water can be boiled in the pot, which is convenient and can ensure the quality of the yam.