Corn crispy sausage is covered with animal casings and can be eaten.

Casings are divided into animal casings, protein casings, fiber casings, cellophane casings and plastic casings.

Animal casing (baked sausage, corn crispy sausage) and protein casing (moist desktop sausage) can be eaten.

Cellophane casing (Qingdao ham), fiber casing (ham) and plastic casing (Shuanghui Wang Zhongwang) are not edible.