Authentic Jiusan soybean oil, produced by Harbin Wellcome Company, with spraying code HK, followed by variable spraying code "1A?" A "stands for first-class oil, and the number of variable spray code of fake 93 soybean oil is mostly 3, which stands for third-class oil.

By smell recognition

Authentic Jiusan soybean oil has a faint fragrance and a normal inherent smell of soybean oil. Fake soybean oil is not strong in smell, and often gives off a faint musty smell.

Distinguish by taste

The quality of soybean oil basically depends on the taste of the oil. Authentic Jiusan soybean oil is the inherent fragrance of soybean oil. The taste of fake soybean oil often presents other abnormal tastes, such as bitterness or sourness.

Extended data:

The national quality inspection standards for soybean oil are as follows:

Leaching oil production process:? Leaching method is to soak oil raw materials in solvent oil at high temperature, and then carry out "six-removal" process (i.e. degreasing, degumming, dehydration, decoloration, deodorization and deacidification). Its biggest feature is high oil yield and low production cost, which is one of the reasons why the price of soybean salad oil is generally lower than that of pressed oil. In the process of leaching, the residue in edible oil is inevitable. According to the national standard, even the qualified leached soybean oil is allowed to contain 10 mg of solvent residue per kilogram.