Cottonseed oil is a vegetable oil extracted from cottonseed, commonly known as pure cotton oil. As one of the four traditional edible vegetable oils in China, it is a safe and nutritious edible vegetable oil, which is called "natural hydrogenated oil". One gram of cottonseed oil provides energy equivalent to two grams of protein or sugar. In the past, cottonseed oil extracted by indigenous methods, called "cottonseed oil", "black cottonseed oil" and "old cottonseed oil", was dark in color and unfit for consumption because it contained more harmful substances and impurities such as free fat and gossypol. In recent years, wei county Yuan Heng Oil&Fat Co., Ltd. has adopted advanced production equipment and processing technology to remove impurities and harmful substances from crude oil through exquisite and rigorous high-temperature water washing process, fully retaining the nutritional components and good characteristics of cottonseed oil, and formed a nutritious and high-quality refined washed cottonseed oil, which is rich in functional components such as vitamin E, vitamin D, vitamin A, linoleic acid, arachidonic acid, sterol and squalene, and can be eaten for a long time. Can be directly used as seasoning. Before frying, it can be used directly without excessive heating.