1, soaked in water. Will screened broad beans, wash with cold water, put in a basin or bowl, add cold water to soak, more than 3 to 4 cm of water, soaking 12 to 24 hours (shorter time in summer, longer in winter), will be poured into the rice bowl rinse clean and then change the water, soaking 48 hours later.

2, drain the water, cleaned into a food bag. The heat preservation of the germination. Broad beans into a food bag, tie the bag tightly, placed on the table or other vessels.

3, every once in a while,, turn the bag to make the temperature uniform. Every 12 hours after the opening of the bag, pour out the beans, check the germination. At the same time with water to rinse beans and food bags, and then again according to the above method into the bag storage. In the room temperature of 27 ~ 28 ℃ conditions, after 3 ~ 4 days, the average length of bean sprouts is generally 0.5 ~ 1.1 cm or so, to be germination rate of 90% or more can be cooked.