Wash the beans you bought and cut them into three sections.
Prepare the materials.
Put all the beans and ingredients into the fresh-keeping bag and fill them with water.
The air is squeezed out of the bag and sealed at room temperature for three days to give a sour taste and then stored in the refrigerator.
After the beans are marinated, they are cut into small pieces and dried with chili. The minced meat is delicious.