1. Boil mung bean soup in cold water for about 30-40 minutes.

2. Before cooking mung bean soup, you need to clean the mung beans and soak them in water for a period of time. On the one hand, the dirt on the surface of the mung beans can be washed away. On the other hand, the mung bean soup can be cooked faster. . In summer, if you choose mung bean soup, you can freeze or refrigerate the mung bean soup for a period of time, which can make the mung bean soup taste more refreshing.