Ingredients: a handful of cowpea, a proper amount of salt, and a glass bottle.

Steps:

1. Wash the fresh beans and cut them into particles of the size shown in the figure. Remember to make them tender and hard. The old ones are not delicious!

2. Add a proper amount of salt, mix well and leave it for about ten minutes.

3. Use a small glass bottle, such as chili sauce, to eat the rest of the empty bottle. Choose this bottle with a bottleneck, because it is conducive to the following steps. Put the beans in! Pull a fresh-keeping bag or a cleaned plastic bag and stuff it in to block the beans. It's just stuck in the bottleneck, so there's no need to cover it.

4. Then put the bottle filled with beans upside down in a plate, and remember the bottle without a lid. Then put a little water in the plate to drown the bottle mouth, and it will turn yellow in about two or three days in summer. It may take a long time in winter. In short, as long as the beans in the bottle turn yellow and sour, they can be fried and eaten. In the process, if you see that the water in the plate becomes turbid, change the water. When changing water, it is very simple. Just pick up the plate and take it under the tap. < P > Applicable people: < P > Women with leucorrhea, itchy skin and acute enteritis are more suitable for eating, and are also suitable for cancer, acute gastroenteritis and loss of appetite. Not suitable for abdominal distension. Beans calm the mind; Regulate the digestive system and eliminate the fullness of the chest and diaphragm. Can be used for preventing and treating acute gastroenteritis, vomiting and diarrhea.

Eating raw beans or uncooked beans is easy to cause poisoning, because raw beans contain two harmful substances: hemolysin and toxic protein. When people eat raw beans, these two toxins have a strong stimulating effect on the gastrointestinal tract, ranging from abdominal discomfort to vomiting and diarrhea, especially in children. Although these two substances in beans are toxic to human body, they have their own characteristics and weaknesses, that is, they are not resistant to high temperature.

Reference: Baidu Encyclopedia of Soaking Beans.