Why do you need to add salt water when using the oil press?
When using the oil press, some people will add salt water. This is because adding salt water can help improve the efficiency and quality of oil extraction. The specific reasons are as follows:
1. Increase oil yield: During the oil extraction process, adding an appropriate amount of salt water can increase the release and separation of oil. The ions in the salt water can change the pressure difference between the inside and outside of the oilseed cells, making it easier for the oil to be released from the cells. This can increase the yield of oil and make the oil extraction process more efficient.
2. Help suspension and separation: During the oil extraction process, oil is generally mixed with other impurities. If salt water is added to the oil press, the salt ions in it can form an electrolyte solution with water molecules, increase the properties of water, and thus bring about the suspension and separation of the oil-water mixture. This helps to precipitate and strip impurities in the oil, making the extracted oil purer.
3. Adjust acidity and taste: The salt ions in the salt water can neutralize the free fatty acids in the oil and reduce the acidity of the oil. This helps to improve the quality and stability of the oil. At the same time, salt water can also add some trace elements and minerals to the squeezed oil, improving the taste and flavor of the oil.
It should be noted that the amount of salt water should be controlled when adding salt water. Too much salt water may cause excessive oxidation, reaction or corruption of oil. In addition, it is also important to choose the right kind of salt. It is recommended to use edible salt that is pollution-free and meets food health standards.
The use of salt water in the oil press can improve the oil extraction efficiency, improve the quality of oil, and adjust the acidity and taste of oil. However, the specific method of use and the amount of addition should be reasonably controlled according to the actual situation and operation requirements.
