1. Put the collected fresh weeds into a pot of boiling water, blanch them for 1 to 3 minutes, and then pick them up. Do not overdo the weeds you put into the pot each time. If there is a lot of water, it is advisable to immerse the scallops in water. Once the scallops are blanched, they are done by tearing them in half.

2. After ironing, quickly put it into flowing cold water to cool down, and then use a bamboo curtain to dry it for 2 hours until the weicae becomes wrinkled and red in color. When there is no water, start rubbing it for the first time. Rub and turn it over every one to half an hour, and it is necessary to rub it repeatedly for more than 8 times.

3. When kneading, rotate and knead gently, and be careful not to break or break the skin of the weicae. Avoid washing with water as it will affect the quality of the drying product. If it's a cloudy day, the fresh Vinegar can be soaked in running cold water. The ones that have been blanched and rubbed but not yet dried can be placed in a bamboo basket or on a straw mat to cool down until the weather clears.