Rapeseed oil is a common edible vegetable oil: characteristics, classification and nutritional value explained

Rapeseed oil is an edible vegetable oil made from rapeseed as the raw material, obtained through pressing or solvent extraction and other processes. Its color is mostly golden to brown, with a unique and rich oil aroma. It is one of China's traditional edible oils and is especially common in the main rapeseed-producing areas such as the Yangtze River Basin.

By processing method, rapeseed oil can be divided into pressed and extracted types, and pressing is further divided into hot pressing and cold pressing. Most of the fragrant rapeseed oil on the market is made by pressing after roasting the seeds, giving it a prominent aroma. By quality type, traditional rapeseed oil has a relatively high erucic acid content, while the double-low rapeseed oil promoted today is characterized by low erucic acid and low glucosinolates. High-oleic rapeseed oil has also been a direction of breeding development in recent years.

Rapeseed oil has a relatively high content of unsaturated fatty acids and also contains components such as vitamin E, so moderate daily consumption can serve as a source of dietary oil. It has good heat resistance and is suitable for Chinese-style cooking such as stir-frying, pan-frying and deep-frying. Its rich flavor is especially suited to dishes such as Sichuan and Hunan cuisine, adding aroma and enhancing the taste of the dishes.

When purchasing, pay attention to the product grade, processing method and production date; buying through regular channels offers more assurance. When storing, it should be sealed, kept away from light and kept away from heat sources such as the stove, and it is recommended to use it up as soon as possible after opening. If the oil shows an obvious rancid odor or unusual turbidity, it indicates that it has oxidized and deteriorated and is no longer suitable for consumption.