The price of 5 liters of rapeseed oil squeezed by Grandma Xiang is different. What is the difference?

First of all, regarding the price, rapeseed oil on the market is actually not more expensive than that in supermarkets. Generally speaking, the price of rapeseed oil in supermarkets is high, while the price of ordinary rapeseed oil in the market is relatively cheap. Compared with the rapeseed oil squeezed by market workshops, the expensive part is actually more of a brand premium.

Rapeseed oil refining process: 1, press refining process, which is also a very traditional oil pressing process in China, with a history of thousands of years. It can also be said that it is the crystallization of the wisdom of our ancestors. Generally speaking, raw materials need to be fried before oil pressing, and then crushed into powder for easy pressing. Next, put the crushed rapeseed powder or peanut powder into an oil press to extract oil. 2. Leaching refining process, the history of leaching process is relatively broken, which is also a new refining process with the development of organic chemistry. The oil in rapeseed is dissolved by organic solvent. The above two refining processes can also be said to have their own advantages and disadvantages. Generally speaking, the squeezed oil tastes delicious, but there are many impurities in it. Although the extraction process is not so fragrant, it can also be heated and boiled before use to improve the edible quality. This method has high extraction rate.