1, green beans buy back, a little pick, pick out the bad. Then soak in cool water for half an hour, and then wash it.

2, electric pressure cooker in cool water, pour the green beans, the amount of boiling water to no more than green beans 2, 3 centimeters good.

3, pressure cooker select [bean hoof tendon] button, about 35 minutes. Pressure to choose - difficult to cook. Taste selection - rich.

4, open the lid and fish out the green bean skins, put in the appropriate amount of rock sugar.

5, put it in the refrigerator or drink it when it is not hot, it feels very good too. Mung beans have the effect of solving dampness and heat, if you don't mind the trouble in summer, you can cook and drink more at home.