The oil extracted from rapeseed is generally called rapeseed oil, rapeseed oil, rapeseed oil and so on. , is one of the main edible oils of our people. The color of rapeseed oil is usually golden yellow or brownish yellow, because it contains a certain amount of mustard rings, and most of them have a pungent smell, commonly known as "green smell", except for the oil squeezed from particularly high-quality rapeseed.

Rapeseed oil contains protein, phospholipids, arachidic acid, oleic acid, linoleic acid, erucic acid, linolenic acid and other nutrients. It is easy to be digested and absorbed by human body, which is beneficial to gallbladder function. China has a long history of extracting oil from rapeseed. The ancient Encyclopedia and Tiangong Wu Kai have the following words: "Those who eat oil are two." Record.