You can sprinkle some salt first, wet it gently with water, and then soak it in soapy water for washing. For slight fruit stains, you can wash them with cold water. If you can't clean it once, wash it again and then wash it again.
If the pollution is serious, you can use dilute ammonia water (1 part ammonia water to 20 parts water) to neutralize the organic acids in the juice, and then wash it with soap.
Wash your hands often, and slowly remove them by metabolism, aging and shedding of epidermal cells of human skin. ?
The black hand of walnut skin is because it contains "walnut green pigment" Traditional Chinese medicine for treating dermatitis contains tannins and gallic acid, which is extracted from walnut green peel and turns black after oxidation. It is most suitable as a colorant in hair dyes.
Precautions for peeling green walnut:
Don't let the juice of the green husk splash on other skins, otherwise it will fester, because the green husk of walnut is also called "Qinglong coat", and its juice is highly toxic. Don't splash it in your eyes. The biggest advantage of peeling green skin artificially is that the skin color looks good, and the naturally deboned walnut skin is dark.
Peeling method:
Dry naturally in the shade. Walnuts with intact skins will wrinkle and shrink after being naturally air-dried in the shade for a few days, and the green skins will naturally separate from the nuts. But for the injured walnut, the green skin is partially black, and this method is not applicable because it will cause yin skin.
Artificial ripening. Spray 200 times of ethephon solution evenly on the green husk, and the green husk will automatically break away from the bone after one day.
Artificial peeling. Specific steps: firstly, peel off a large piece of green peel with a knife, continue to brush the remaining green peel with an iron brush combined with clean water, and finally carefully clean it with a fine needle and toothbrush. The whole process is best carried out with rubber gloves, otherwise the skin on your hands will be dyed black.