Select soybeans or mung beans that are full of particles, bright in color, free of pests and impurities, and soak them in warm water for 6-7 hours. When the beans swell and open, fish them out and put them in a basin. Spray warm water regularly every day to keep the needed temperature and moisture. Development of bean sprouts should pay attention to:

1. When the bean sprouts grow to 1.5 centimeters, the need for water increased, watering to penetrate, do not leave a dead end; 2. The water temperature should be constant, can not be suddenly high, suddenly low. Otherwise, it will produce red roots, rotten roots; 3. The water temperature can not be too high, the head can not be too short. Otherwise, only long roots, not long stalks; 4. When the bean sprouts grow to 5 centimeters, it is necessary to slightly increase the water temperature, increase the heat, in order to prevent the roots from blackening.

5. When the bean sprouts close to 8 centimeters long, reduce the water temperature; 6. Germination is complete, timely removal, in order to prevent the middle of the mold.

7. Bean sprouts should not be made too long. Because when the soybean sprouts more than 8.5 centimeters, mung bean sprouts more than 12.2 centimeters, the protein is prone to dehydration, nutrient loss.