How is vegetable oil made? And what are the methods of oil extraction?

In our daily life, vegetable oil is one of main daily consumable. Do you know how is vegetable oil made? Following, Henan Glory Company introduces the methods of oil extraction from oil seeds to you.

If you want to make vegetable oil, there are two kinds of methods of oil extraction from oil seeds, which you can choose. One is pressing method, and the other one is solvent extraction method. But whichever method you use, the oil seeds should be pre-treated by several machines in advance.

Different oil seeds need different pretreatment machines

Different oil seeds have different features, so as the above picture shows, different oil seeds need different pretreatment machines. Why need pretreatment? It is to adjust the oil seeds into best condition for pressing or solvent extraction, and it also can increase the oil yield rate. Through pretreatment, there will be less impurities in crude vegetable oil and the quality of crude vegetable oil will be better, too.

Pressing method of oil extraction from oil seeds

Vegetable oil press plant

After pretreatment, you can use pressing method to extract oil from oil seeds. But you should pay attention that if your oil seeds is high oil content oil seeds, only once pressing is not enough, so the oil seeds, such as groundnut, sunflower seed, rapeseed and cottonseed, should use twice pressing method to low down the residual oil rate.

Solvent extraction method of oil extraction from oil seeds

Vegetable oil solvent extraction plant

After preteatment, the oil seeds that contains low oil content, such as soybean and rice bran, can be sent into vegetable oil solvent extraction plant directly to extract oil out, but the oil seeds that contains high oil content should be pre-pressed by vegetable oil pre-press machine, and then the press cake will be sent into vegetable oil solvent extraction plant to extract more oil out.

Therefore, if you want to make vegetable oil, you should decide which method of oil extraction you want to use, and then our engineer can design suitable vegetable oil production process according to your needs.

Besides, if you want to further process crude vegetable oil into refined oil, you should buy vegetable oil refining machine. Doing Holdings - Henan Glory Company can customize the complete of vegetable oil production line that suits you. Welcome you to contact us!