Tips Of Identifying The Supermarket Soybean Oil Quality

How to identify the soybean oil in your home? Or how to identify the food and oil when you go to the supermarket to buy them? Here's a simple analysis and some tips on how to identify the soybean oil.
 

1.Odor identification. When the sensory identification of soybean oil, the following 3 methods can be used: 

  (1)Containers of oil seal is opened instantly, with the nose near the mouth of the container, smell the smell;

  (2)Take 1 to 2 drops of soybean oil on the palm and the back of the hand, hands together quickly to friction heat, smell the smell;

  (3)With steel spoon of oil 25 grams, heated to 50 degrees Celsius, close to the surface of oil with the nose, smell the smell.

 

2.Color identification. Pure oil is colorless, transparent, slightly viscous liquid. But because the soybean oil material itself contains a variety of pigment, in the process of processing these pigments dissolved in the oil and make the oil has a color. The depth of soybean oil color is mainly depend on oil particles contained in the fat soluble pigment type and content, the quality of the quality of oil seeds, processing methods, proficiency and oil storage lipids of process changes.

 

3.Transparent identification. The quality of normal soybean oil should be transparent, if the soybean oil contains phospholipids and solid fat, wax and content too much or moisture content is big, there will be cloudy, reducing transparency. When the sensory identification of the transparency of the soybean oil, the 100 ml of the full mixture of uniform samples placed in the color tube, and then placed in a white background by the reflection of light.

 

Good quality soybean oil: completely clear and transparent.

Middle quality soybean oil: slightly turbid, a small amount of suspended matter. 

Inferior soybean oil: Oil and liquid, there is a large number of suspended solids and sediments.