What is the difference between pressed and leached oil?
Familiar with the grain and oil machinery industry people know, commonly used oil crops extraction methods have two kinds of pressing and leaching, many people do not know what is the difference between them, in the end, which is more healthy and leaching oil more retain the nutritional value of it, the following Zhengzhou Penguin Cereals and Oils Machinery Company Limited engineers to give you a detailed explanation of the difference between the two.
1, processing technology
In the use of the pressing process needs to be added to the first water on the material for crushing, put into the pan fried transported to the screw press press to get semi-finished oil, and then the gross oil precipitation, refining process and get cooking oil.
Leaching oil is a chemical process, the material is pressed into thin slices and put into the light gasoline for soaking treatment to get mixed oil, and then heated distillation to remove the light gasoline to get semi-finished oil, and after a series of process to get edible oil.
2、Nutritional composition
The pressed oil can better protect the unsaturated fatty acid components such as linoleic acid and the nutrients in the oil in the production, but also has a natural flavor. Leached oil is mostly obtained through high temperature and chemical reaction, which will destroy the unsaturated fatty acids such as linoleic acid and damage the original nutrients in the oil, and there is no natural flavor.
3、Production cost
Compared with the pressing oil process, leaching oil mostly adopts production line operation, and the degree of mechanization of oil equipment is high, so the production cost is lower.
