Long beans, also known as cowpeas, are long and thin, so people like to call them "long beans". Long bean is an annual twining, grassy vine. In the vegetable garden, people will set up a herringbone frame with bamboo poles or wooden sticks for them to climb and grow. In May and June of the lunar calendar, long beans began to grow. The slender long beans hang down from the vines, which is particularly beautiful.

Nowadays, many people know that beans contain some toxins, which must be thoroughly fried before they can be eaten, otherwise it may cause toxic reactions in the human body. But in fact, this tender long bean can be eaten raw. When I was a child, I went to the vegetable garden with my mother. I often picked long beans and stuffed them into my mouth while picking them. The tender long beans taste like beans, and the more you chew, the sweeter it becomes.

Long beans are rich in protein, various vitamins and minerals, and have the functions of strengthening the spleen, invigorating the stomach and tonifying the kidney. Li Shizhen thinks that long beans can "regulate the middle energizer, tonify the kidney and stomach, harmonize the five internal organs, regulate the camp and health, and give birth to the essence".

However, long beans bought in supermarkets and markets are not recommended to be eaten raw.