The red head of mung bean sprouts is caused by light during germination with mung beans. Therefore, in order to prevent bean sprouts from turning red, attention should be paid to avoiding light and moisturizing during the cultivation process. During germination, when observing mung beans, always remember to keep the gauze moist and keep it in a cool and dark place.

Usually, the bean sprouts that grow naturally, because the gauze should be opened from time to time to observe the growth state of the bean sprouts, it is easy to see the light, which leads to the redness of the bean sprouts and the difference in sales. However, some bean sprouts sprayed with growth agent in the market are thick, white and rootless. The growth agent is a synthetic cytokinin, which can promote the growth of plant cells and inhibit the degradation of plant chlorophyll. The maximum dosage is 0.0 1g/kg.

However, bean sprout growth agent is harmful to human body. Eating too much will produce nitrite in the body, which is easy to cause cancer, and no one can guarantee that bean sprout manufacturers can use it according to the dose.

Extended data

Three tips for judging healthy bean sprouts;

1, look at the roots. Healthy bean sprouts have roots, and the roots are very thin, while bean sprouts using chemicals are very beautiful, with undeveloped roots and few or no roots.

2. Look at the stalk. Healthy bean sprouts are not soft, the color is yellow, and the bean sprouts soaked in chemicals are very thick and clean. ?

3. After breaking. Because of natural growth, healthy bean sprouts will not emit water after being broken, which has a strong bean flavor in the mouth, while bean sprouts soaked in chemicals will emit a lot of water after being broken, which tastes only like water and has no natural fragrance of bean sprouts. ?

Nanjing Daily Digital Newspaper-The Growth of Bean Sprouts (see the third paragraph)

China economic net-how easy it is to cause cancer when bean sprouts are white and fat after spraying growth agents.