1. When we eat green walnuts, we don't have to worry about accidentally getting the juice of walnuts. At this time, you can take some edible salt and sprinkle it on the part of your hand stained with walnut juice, and moisten it with a little water. This is because salt can adsorb and remove part of walnut juice.

2. Next, soak the parts stained with walnut juice in soapy water for further cleaning. If you don't have much walnut juice, you can wash it with cold water. After cleaning according to the above steps, the residual walnut juice on hands will be obviously reduced, but there may still be some faint traces. You can continue to wash it again in the above way until it is clean.

3. If you have a lot of walnut juice on your hand, because walnut juice also belongs to fruit juice and contains organic acids, you can wash it with dilute ammonia water with the concentration of 1: 20, because ammonia water is alkaline and has a neutralizing effect on organic acids. Then wash with soap, and finally wash with water.