Chestnut is rich in starch, sugar, protein, fat, vitamins and other nutrients. Therefore, if it is not properly preserved after frying, it will deteriorate. In low temperature environment, it can be stored for about 3-5 days without deterioration.

Chestnut is rich in starch, and also contains monosaccharide and disaccharide, carotene, thiamine, riboflavin, nicotinic acid, ascorbic acid, protein, fat, inorganic salts and other nutrients. Moreover, chestnut can not only be eaten raw and cooked, but also be processed into canned chestnut chicken, chestnut soup, chocolate, milk powder substitutes, preserved chestnut and other flavor foods, as well as fillings for various cakes.