Traditional edible oils such as soybean oil, rapeseed oil, cottonseed oil, and peanut oil are "crude oils" extracted through simple extraction and rough processing. They contain many impurities and ingredients that are not good for human health. Some data show that cottonseed oil contains gossypol, which is poisonous and causes infertility; erucic acid in rapeseed oil is extremely harmful to patients with high blood pressure and heart disease; and phospholipids in soybean oil cause the oil to smoke and produce gas at high temperatures. Certain amounts of carcinogens. As for animal oil, because it contains fat and cholesterol, it can easily cause the fat concentration in the blood of the eater to rise sharply and induce angina pectoris, stroke and other diseases. Therefore, more consumers are turning their attention to refined salad oil, a high-grade cooking oil. Salad oil is raw mixed oil. Although it still uses plant raw materials such as peanuts, soybeans, sunflower seeds, and corn, it uses special scientific methods and processing techniques, that is, through processes such as degumming, deacidification, dewaxing, decolorization, and deodorization. It was formed later. The oil is clear and transparent and light in color. It does not change color or burn when heated in a pot, making the dishes bright and beautiful, and the food is tender and delicious. Salad oil avoids the "drunk oil" phenomenon that makes people "hate cooking". Compared with traditional cooking oil, salad oil has very few volatile impurities.