1, first of all, mung bean sprouts should be soaked into the water for about 24 hours to let it fully absorb water, and then fish it out. Seeds absorb water, volume expansion, seed coat swelling.

2, the embryonic root is the first to elongate, break through the seed coat, and develop into a young root. Note: the seeds of mung beans belong to the temperature-loving, heat-resistant vegetable crop seeds, the minimum temperature for germination of its bean seeds is 10 ℃, the optimal temperature of 21 ~ 27 ℃, the maximum temperature of 28 ~ 30 ℃, should not exceed 32 ℃.

3, the embryonic axis below the cotyledons elongated, with two cotyledons sticking out of the soil surface. The head of the mung bean sprouts separated into two petals, a little tender green.

4. The cotyledons separate and the yellowish-white germ gradually turns green in the light and develops into stems and leaves. Mung beans in the germination process, vitamin C will increase a lot.