Soaking method: green beans can be soaked before cooking, the longer the soaking time the shorter the cooking time will be. It is recommended to soak for about 3 hours, soaking can make the outer skin of the green beans absorb water and expand, shorten the cooking time. Frozen method: green beans first soaked in cold water for 10 minutes, drain the water and put into the freezer. After freezing, the water will turn into ice, and the volume will increase, it will be able to break the outer skin of the green beans, and then put into the hot water to cook, it will soon be fully cooked.

1, soaking method: green beans can be soaked for a while before cooking, the longer the soaking time the shorter the cooking time will be. It is recommended that you can soak for about 3 hours, soaking can make the outer skin of the green beans absorb water and expand, in the process of cooking the outer skin is more likely to be broken, the inside will be easier to be cooked.

2, frozen method: green beans before cooking can be soaked in cold water for about 10 minutes, drain the water into the freezer. After freezing the water into ice volume will increase, it will be able to break the skin of the green beans, and then into the hot water inside the boil, will soon be completely cooked.