Cooking oil is a necessary ingredient every day, so choose carefully to avoid accidentally buying fake cooking oil.
Fragrance oil: Looks transparent without precipitation in light. Adulterated fragrance oil, not very transparent in the light. Good quality sesame oil is yellow, and small ground sesame oil should be considered whether it is mixed with cooked rapeseed oil, if it can be heated, it can be further identified. Sesame oil mixed with lard after heating white, mixed with cottonseed oil silting pot. If bottled oil, should pay attention to the difference between the top and the bottom to prevent the top oil, the bottom of the mixed oil. In addition, put the oil into the tank and observe it after freezing, and the pure fragrance oil should be liquid. Like false balsam, it congeals.
Soybean oil: the top of the foam is white, the oil color is dark yellow, the foam flower is complete, there is a yellow edge on the oil bottle, there is a bean smell, the taste is astringent.
Peanut oil: The top of the foam is yellow, slightly green, the foam flowers appear rainbow, taste peanut flavor.
Rapeseed oil: Foam top yellow, slightly green, foam flower rainbow, taste fragrant with spicy.
Salad oil: light yellow, pure and transparent.