The refining process of edible oil is to remove impurities, pigments and odors from the original vegetable oil through a series of physical or chemical treatments, so that it can meet the quality requirements of national standards for edible oil. In the refining process, the oil yield is a very important index, which directly affects production costs and product quality.

Oil yield refers to the ratio of the output of edible oil obtained by refining process to the original vegetable oil. Usually, the oil yield is a key economic index, which is of great significance to edible oil production enterprises. A higher oil yield can effectively reduce production costs and improve the economic benefits of enterprises.
The oil yield is affected by many factors, including the variety, quality, oil content and refining process of the original vegetable oil. Generally speaking, the oil yield of different original vegetable oils will be different in the refining process. For example, different kinds of vegetable oils such as soybean oil, peanut oil and palm oil may have certain differences in oil yield during refining.
In refining process, the oil yield is affected by operating technology, equipment performance, process parameters and other factors. Reasonable operation technology and advanced equipment can improve the oil yield, while improper operation and poor equipment will lead to a decline in the oil yield. Therefore, edible oil production enterprises need to pay attention to the upgrading of technology and equipment to improve the oil yield and product quality.
In addition, the wastewater treatment in refining process also has a certain influence on the oil yield. In the refining process, improper treatment of wastewater will lead to some raw oil being brought into the wastewater and unable to be recycled, thus reducing the oil yield. Therefore, scientific and reasonable wastewater treatment process is also an important link to improve the oil yield.
In a word, the oil yield is a very important index in the process of edible oil refining, which is directly related to the production cost and product quality. Edible oil production enterprises should strengthen technological research and equipment upgrading, optimize production technology, improve oil yield and reduce production costs, so as to improve the economic benefits of enterprises.