Bean sprouts contain vitamin C, which can be used to treat scurvy, remove cholesterol and fat deposits in blood vessel walls and prevent cardiovascular diseases. Mung bean sprouts also contain riboflavin, which is suitable for patients with oral ulcer. It is also rich in dietary fiber. Healthy vegetables for constipation patients are poured into mung beans with water twice a day in a bucket, and the cotton cloth on it should be kept moist. You can buckle a big basin on the barrel mouth to prevent sunlight from entering. After three or four days, mung beans can teether, and the teeth can grow to one centimeter. After five to seven days, give the bean sprouts a bath every four hours, and the water will come out from the spout of the kettle, so as to minimize the time of opening the lid and prevent the bean sprouts from turning pink when they see too much light, and the taste will become bitter. If they soak in warm water for four or five hours, all the skins will be ground. This kind of bean can grow, but it will rot and affect other bean sprouts, and it will be soaked in warm water. Be careful not to water too much at a time. Never uncover the towel during this period, or the bean sprouts will grow in vain. Remember to wash them clean.