1, look at the color: high-quality soybean oil is yellow to orange; Secondary soybean oil is brown to brown.
2. Observe the oil body: the high-quality soybean oil is completely clear and transparent; Secondary soybean oil is slightly turbid with a small amount of suspended matter; Inferior soybean oil is turbid, with a lot of suspended matter and sediment.
3. Smell: High-quality soybean oil has the special bean smell inherent in soybean oil; Inferior soybean oil has a dull smell and a slight odor, such as grass; Inferior soybean oil has bad smells such as musty, burnt and spicy.
Brief introduction of soybean oil
Soybean oil is an oil extracted from soybean, which has a certain viscosity and is a translucent liquid. Its color varies with soybean seed coat and soybean variety, from light yellow to dark brown, with soybean flavor. Soybean oil is an oil extracted from soybean, which has a certain viscosity and is a translucent liquid. Its color varies with soybean seed coat and soybean variety, from light yellow to dark brown, with soybean flavor.
The color of refined soybean oil will change from light to dark after being stored for a long time, which is called color reversion. The color recovery of soybean oil is more obvious than other oils, and the complex changes caused by automatic oxidation of oils may be the basic reason. This phenomenon can be prevented by reducing the moisture content of raw materials. This method is widely used and basically solves the color problem of soybean oil.
The above contents refer to Baidu Encyclopedia-Soybean Oil.