The shell of chestnut is inedible. The hairs on the outside of chestnut pulp are edible. It's from a kind of Chinese medicine. It can cure bone and throat problems. "Compendium of Materia Medica" has records. Therefore, it can be eaten in small amounts.

Supplementary information:

Chestnut (scientific name: Castanea mollissima), also known as chestnut, chestnut, chestnut, and wind wax, is a plant of the genus Castanea in the Fagaceae family. It is native to China and is distributed in In Vietnam, Taiwan and mainland China, it grows in areas with an altitude of 370-2800 meters. It is mostly found in mountains and has been widely cultivated artificially. Chestnuts are rich in nutrients, and their vitamin C content is higher than that of tomatoes and more than ten times that of apples. The minerals in chestnuts are also very comprehensive, including potassium, zinc, iron, etc. Although the content is not as high as hazelnuts, it is still much higher than ordinary fruits such as apples, especially the potassium content is three times higher than that of apples.