2, with scissors every 60cm to cut the small intestine into breaks.
3, pinch one end of the pig's small intestine with both hands, keep it open, and use flowing water to pour into the small intestine to clean and remove the internal dirt of the small intestine.
4, and then pinch the edges of the opening of the small intestine with both hands, turn the opening outward, and then turn over to the sandwich in the water.
5. With the weight of the running water, push the remaining part of the small intestine toward the center, so that the water is flushed while flipping the small intestine, you can turn the small intestine out so that the inner wall is outward.
6. Rub the flipped small intestines with 3 tablespoons of salt until there is no dirt on the inner walls of the small intestines, and then rinse them again with running water.
7. Sprinkle 100g of flour on the small intestines of the pig and rub the small intestines well to remove the mucus and odor from the small intestines and rinse them with running water. Then put the small intestines on the faucet and open the faucet to wash, and repeat steps 4 and 5 to turn the small intestines back to the original shape.
8, again hands pinch the opening of the small intestine, carefully rubbing to make the skin film and the inner layer separate.
9: Tear off the skin film carefully and remove the white oil film and tendons from the small intestines, being careful not to tear the small intestines.
10, and finally turn the small intestine again so that the inner wall outward, flat on the board, with the edge of the square rib chopsticks to remove the thick film on the inner wall of the casing, then you will find that a milky white transparent film is left, which is the sausage casing needed to fill the sausage.