it will break. Duck feet bag belongs to cooked food, and it will deteriorate if it is put outside directly. It should be covered with plastic wrap and stored in the refrigerator. Duck feet bag is a famous snack in Xuancheng, Anhui Province. It originated from duck feet preserved by special technology in the 193s. The middle of each duck foot is wrapped with specially preserved duck heart and wrapped with specially preserved duck intestines for external use.