After the walnuts are shelled, there is a layer of coating (skin) on the surface of the meat. This coating has a bitter taste and can be removed. The method of removing the clothing is to soak the walnut meat in water and then pick it with a bamboo skewer, so that the clothing can be easily peeled off. If you put some salt in the boiling water, the effect will be better.

However, it is recommended not to remove it. Because the nutritional value of walnut coating is relatively high. Traditional Chinese medicine believes that walnuts are bitter, astringent, and mild in nature and have the effects of strengthening the stomach, nourishing blood, moistening the lungs, and nourishing the mind.