Cooking oil is a daily necessity, and many consumers are often torn between buying pressing oil or solvent extraction oil. So, what's the difference?
According to the different oil process, edible oil can be divided into pressing oil and solvent extraction oil. Pressing oil is a traditional craft product, which is often shaped as "safe", "healthy" and "high grade". As a new technological product of modern food industry, solvent extraction oil is often belittled as "unhealthy" and "unsafe".
Is that true? Come to learn the following questions about pressing oil and solvent extraction oil:
After eating pressing oil for hundreds of years, why should the "solvent extraction" process be introduced?
"Pressing" is the extrusion of oil from oil seeds by mechanical forces. The oil yield of the pressing method is low, and a considerable amount of oil still remains in the pressed residue.
If the solvent extraction method is used, the oil content in the residue can be reduced to less than one percent, greatly improving the oil yield and reducing waste. Compared with "pressing" process, "solvent extraction” process can be done for a very large scale project.
Without the solvent extraction process, there would be no large-scale and modernization of China's oil industry today, which is beyond the "pressing" process.
How safe is solvent extraction oil?
Solvent extraction method uses organic solvent to extract and dissolve the oil in the oil materials, and then removes the solvent in the oil by heating stripping. Extraction is only a physical process without chemical reaction between oil and solvent. These organic solvents have low boiling point and are highly volatile, and are basically cleaned up in the refining process.
Edible oil produced by solvent extraction method is high quality and safe as long as it meets the technical and quality standards of edible oil issued by the state.
Whether the pressed oil is what we buy?
Actually no matter the pressing process, or solvent extraction process, what we get are crude oils , crude oil cannot be eaten, they should be refined in the full process, remove the impurities in the oil, make it a lighter color, clarification, refined oil, reached the standard of oil products at all levels to go on sale.
Is there much nutritional loss in solvent extraction oil?
No matter "pressing" or "solvent extraction", lipids beneficial to human health such as phospholipids, vitamin E, sterols, etc. in oil will be extracted into crude oil. As long as the quality of raw materials is guaranteed and the oil preparation and refining process are scientific, the nutrition of solvent extracted oil can be guaranteed.
1. Regardless of pressing oil or solvent extraction oil, you should go to formal channels to buy edible oil with clear origin and within the shelf life. Unrefined self-pressed oil on the market, although it has a special flavor, contains more impurities, especially aflatoxin content may be higher, and the oil has not gone through strict inspection and quarantine, there are a lot of food safety risks.
2. Vegetable oils such as peanut oil, soybean oil and corn oil are generally classified into grade I, II, III and IV according to the degree of refinement. The higher the level, the more refined it is. But whether it is grade I oil or grade IV oil, as long as it meets the food safety standards of edible oil in China, it is high quality and safe edible oil, and we can rest assured to choose it.
3.Many people know not to eat only one kind of oil for a long time, so they always eat soybean oil and peanut oil in turn. In fact, this is a misunderstanding. Do not eat only one kind of oil for a long time means that do not eat the oils with a similar fatty acid ratio, we should eat oils with different fatty acid ratio in turn. Such as soybean oil and peanut oil are similar; Corn oil and sunflower oil are similar; Olive oil and tea seed oil are similar, etc.
Now, I believe you have understood, do not be too entangled in the problem of pressing oil or solvent extraction oil, just choose the variety you like, as long as it meets the national food safety standards, it is good oil and safe to eat.
Henan Huatai Cereals and Oils Machinery Co.,Ltd,a subsidiary of Henan Huatai Intelligent Equipment Group, is located in the industrial clustering area of Hua County, Henan Province, covering an area of 150 mu, with modern standard workshops and processing equipment, and is a large-scale manufacturer of grain and oil machinery, environmental protection machinery and medical equipment, integrating research and development, design, manufacturing, installation and after-sales service.New third board listed enterprises，The company has passed ISO9001:2015 Quality Management System Certification, OHSAS18001:2007 Occupational Health System Certification, ISO14001:2015 Environmental Management System Certification and ISO50001:2018 Energy Management System Certification. It is "outstanding corporate member of China Cereals&Oil Association(CCOA)", a provincial-level contract-abiding and trustworthy enterprise, an "Excellent Private Enterprise of Henan Province", a provincial-level enterprise technology centre, a national high-tech enterprise, a national-level green factory and a "small giant" enterprise of specialization and innovation.
