On the premise that the taste of the dish has not changed much, use the refrigerator and microwave oven to make the dish into semi-finished products. For example, a guest ordered fried belly slices with green pepper. It is generally possible that the pork belly is washed and cooked, the green pepper is washed, and the ingredients such as ginger and garlic are washed and placed on the side. You have to cut pork belly and green pepper first, then cut the ingredients, and finally put them in the frying pan. This is a linear process, and it is impossible to shorten the time step by step. If you wash your stomach in advance, cook it, cut it, divide it into several parts, and then freeze it in the freezer alone, my method is to put one part in a deep plastic bag, squeeze it tightly, screw the plastic bag well, put the second part on it, and stick to it. Because plastic bags don't freeze, they are used to divide semi-finished products into parts. When guests order, take out a slice of belly, bite it in the microwave for a minute or two, and cut off the green pepper and ginger and garlic at the same time. After cutting, the belly slices have been thawed and fried directly in the pot. In this way, you can save the time of cutting belly slices and keep them fresh. The same piece of meat, shredded pork can also be fried first and then frozen. The industry can handle many foods in this way. The process of freezing and thawing does not affect the freshness and nutrition of food. The only effect is the crisp and tender taste of vegetables. So if we can avoid this as much as possible, we can greatly shorten the time.