1. Wash mung beans, pick out bad beans and soak them in water 12 hours.

2. Take it out the next day, pour out the soaked water, take a clean gauze, get a little wet and cover it.

3. Spray some water so that the side of the gauze is soaked, and there is not too much water at the bottom. Put it in the dark and spray it twice a day in the morning and evening.

4. Before 1, 2 days, the beans will explode and develop buds, and then they will continue to grow taller (because they will turn red when they see light, they will not be taken out for photos. This is the seventh day. The gauze has been pushed high enough to eat, so I took it out to take pictures.

After 5 or 9 days, the gauze can no longer be covered and can be eaten.