1, cut a small hole in the pig's belly, turn the inner surface out, and scrape off the residue on it with a knife, especially the yellow stuff, which is the dirtiest, and contains a lot of bacteria and viruses.

2. Then prepare 4 spoonfuls of flour. The main function of flour here is to neutralize the gastric juice in pork belly and remove the fishy smell.

3. Sprinkle the flour on the surface of the pork belly, and then spread the flour evenly by hand, especially at the folds of the pork belly where gastric juice is produced. Be sure to sprinkle enough flour. The amount of flour is determined according to the size of the pork belly, just cover all the pork belly.

4. Keep rubbing the pork belly covered with flour with your hands, but don't use too much force to avoid damaging the fiber of pork belly. Knead for about 5 minutes.

5. Rinse with warm water, scrape off dirty things that are difficult to clean with a knife, and pay attention to your fingers when using a knife.

6. Turn the pork belly upside down again, put the folded part in, pour in clear water, knead the cut holes together with your hands, don't let the water flow out, gently shake it twice, and let the clear water flow out from the spout of the pork belly (a small tube in the front section). Repeat for 3 times.

7. Finally, put salt on the pork belly, remember to put it on both sides, let it stand for 5 minutes, and then rinse it with water.