5 How to make Jiangdou Gan material: Choose fresh, firm cowpeas with straight pods and neat length, pick them in the evening and eat them after drying.

Treatment method:

1. Add water to the pot to boil, then pour the cowpea, cover it, and when the water in the pot boils, turn the cowpea over and take it out.

2. Immediately spread cowpea on the drying basket, and after drying for 3-4 hours, turn cowpea over when the sunny side of cowpea changes from blue-green to blue-white, then turn cowpea over every 2-3 hours, and spread cowpea on the drying basket at night without piling up, so cowpea can be continuously dried for 2-3 days.

3. Put the dried cowpea in a steamer and steam it. After the cowpea is wet and soft, immediately take it out of the cage and continue to dry. Turn over every 2-3 hours, and it takes about one day to get Jiang Dou Gump.