The difference between the squeezing method and the leaching method is that the squeezing method directly separates the oil from the oil by physical pressure, and the whole process does not involve any chemical additives, thus ensuring the safety, hygiene, pollution-free and natural nutrition of the product. In the leaching method, solvent oil (No.6 light gasoline) is used to process oil raw materials through "six-removal" process (degreasing, degumming, dehydration, deodorization and deacidification), which is one of the reasons why the price of leached oil is generally lower than that of pressed oil. Obviously, from the perspective of pursuing natural health, oil extraction is more in line with people's consumption psychology.

There are more and more edible oil brands on the market. At first glance, the variety is complete and dazzling. Peanut oil, salad oil, blended oil, sunflower seed oil, etc. These are collectively called edible oils. But you know, from the perspective of technology, there are only two kinds of oil products, namely physical "mechanical pressing" and "chemical leaching" oil.

Physical "mechanical pressing" oil is an oil product formed by separating oil from oil through physical pressing. Physical pressing method combines modern science and technology, especially the fully enclosed and pollution-free mechanized pressing oil-making technology and high-tech filtration and purification technology in the processing process, which has the characteristics of pollution-free natural nutrition and original flavor.

Chemical leaching oil is an oil product that separates oil from oil by chemical oil making method. This method is made by "soaking" edible oil raw materials with "No.6" solvent oil (commonly known as No.6 light gasoline), then extracting at high temperature, and then processing through "six degreasing" procedures (namely degreasing, degumming, dehydration, decolorization, deodorization and deacidification). The National Office of Grain and Oil Standards and Quality held a meeting on the approval of edible oil standards in Yantai, Shandong Province, and technically strictly distinguished between "physical mechanical pressing" and "chemical leaching". The manufacturer must indicate on the product label whether it is physical mechanical oil extraction or chemical leaching oil.

With the progress of society and the improvement of people's living standards, pollution-free, hygiene, safety, nutrition and health are people's pursuits. It is very necessary for consumers to know whether the oil they eat is "physical squeezing" or "chemical leaching".