1. Pork should be cut obliquely. Pork is thin and weak. If you cut it horizontally, it will become messy after cooking. If you cut it obliquely, it won't break or plug anything. Pork should not be soaked in water for a long time;

2. When cutting fat, you can dip the fat in cold water first, then put it on the chopping board, and sprinkle some cold water while cutting, which not only saves labor, but also prevents the fat from slipping off and is not easy to stick to the chopping board;

Don't wash pork with hot water before cooking, because pork contains myoglobin, which is easy to dissolve in water above 15 degrees Celsius. If you soak in hot water, you will lose a lot of nutrients and taste bad.

4. Pork should be cooked, because sometimes there are parasites in pork. If eaten raw or inadequately conditioned, it may parasitize hookworms in the liver or brain;

5. Sandwich meat contains a lot of fat, so as long as the fat is dissolved in the soup and frozen, a layer of oil will condense on its surface. If the oil is removed, there is no need to worry about hurting the stomach or causing fat;

6. Sandwich meat needs patience and slow stewing. The longer you cook, the more gum you have, which can strengthen your blood and skin.