the food can be frozen and stored.

pigskin jelly is a kind of traditional special food boiled with pigskin, which mainly contains collagen, which can inhibit the growth and reproduction of bacteria in frozen environment and prolong the shelf life of pigskin jelly. Moreover, pigskin jelly itself is the cooled food, which is stored in the refrigerator for freezing. It can be stored for about 3-5 days at -4℃ in the freezer.