Take a small dish of starch and put it in a bowl full of large intestine. Never drain water, put on gloves and rub it with your hands. Flour or starch can be effectively adsorbed on the surface of the large intestine, and flour can adsorb a lot of mucus on the surface of the large intestine, which is also the dirtiest thing in the large intestine.

After rubbing several times, add appropriate amount of salt and rapeseed oil, and repeat several times until there is no mucus in the large intestine. Even if you rub it repeatedly with your hands, you will squeeze out a lot of mucus and wash it away with water. Mucus on the surface of the large intestine can be cleaned in a few minutes.

Find a hollow basket, put the large intestine in it, put it in tap water, rinse it with water for a while, or put it directly in the pool. After washing, drain the pool water and remove the large intestine.

Next, the most important step is to turn out the large intestine. If not, the easiest way is to cut the cleaned large intestine into small pieces with scissors, which makes it easier to turn over. Generally, we can solve this problem with a chopstick. Insert chopsticks into a small opening of the large intestine, hold them with chopsticks, and turn the other hand in the opposite direction.

There is a lot of miscellaneous oil in the turned-over pig large intestine. Holding the oil in the inner layer of the large intestine with your fingers is the most laborious and time-consuming step. After the oil in the large intestine is cleaned, just turn the pig's large intestine back and rinse it with water several times.

This is a clean pig large intestine. The pig's large intestine washed with edible oil and salt has no odor at all.