In the industry, agar is generally used to make plant-based dishes, because it is extracted from seaweed and is more suitable for making plant-based dishes. When making animal dishes, skin jelly is generally used. Skin jelly is made from tender pig skin, boiled until raw, remove the fat, scrape off the remaining pig hair, wash it with a little alkali and vinegar (about 1), then change it into strips and add water (the ratio is roughly raw material 1:water 3) Put the onion, ginger, cooking wine, etc. into a stainless steel pot and bring to a boil over high heat. Turn to medium to low heat and simmer slowly. When the pig skin melts, add salt, MSG, and sugar to the thick soup. Cool naturally or lower to 0 degrees Celsius. of refrigerator. There are a few points to note: 1. Choose good pig skin and wash it clean. 2. Use a knife to make the pork skin thinner and make it easier to cook. 3. It cannot be stored in an environment below 0 degrees, because it will freeze below 0 degrees, and the water will be lost after thawing, so it cannot be formed and the characteristic flavor of meat skin jelly will be lost. The skin jelly made in this way is crystal clear, and the dishes cooked in this way are also beautiful.