Pig bitter intestine is the middle part of the pig's abdomen.

Bitter sausage is a kind of food, often used for stir-fry. Generally called intestine skin, it is a by-product of pig small intestine.

Pork bitter sausage can be made directly into delicacies or used as casings to make various sausages.

Pig small intestine is relatively nutritious and contains calcium, magnesium, thiamine, iron, riboflavin, manganese and other essential trace elements and minerals for the human body, but its cholesterol content is high. Cleaning is very important when cooking with pig intestines. If it is not washed thoroughly, a bitter taste will appear.