Cottonseed oil is usually processed by pressing (oil press) and leaching (leaching equipment) to obtain crude oil with more impurities, and then these crude oils are refined to obtain edible refined oil. It should be noted that the unrefined pressed or leached crude oil contains more colloids, free fatty acids, colored substances, etc. These substances cannot be eaten directly and can only be used as raw materials for finished oil. Crude oil needs to be refined and processed, and after water washing, deacidification, decolorization, deodorization, dewaxing and other processes, it becomes a lighter and clearer finished oil to meet the standards of various levels of oil products. The cottonseed oil refining equipment of QIE Machinery uses stainless steel in the deodorization part, which not only avoids the damage of the deodorization equipment under high temperature and high vacuum conditions, but also does not affect the deodorization effect of cottonseed oil. Therefore, when choosing cottonseed oil refining equipment, you should pay attention to whether the material of the equipment meets the requirements.