Teach you how to distinguish between good and bad perfumes
There is a method of identification that does not need any equipment. It is very convenient and effective to use. This method is called friction method. We find two kinds of fragrant oils. We dip one drop of fragrant oil on the forefinger of both hands, and then rub the thumbs of both hands separately. Because of the heat generated by friction, the movement of aromatic molecules in the oil intensifies and the fragrance will spread. After one minute of rubbing, we can smell the fragrant oil on the fingertips. If the sesame oil is not adulterated, only the fragrance of the fragrant oil is strong; if mixed with other vegetable oils, besides the fragrance of the fragrant oil, it will also mingle with the peculiar smell of adulterated oil; if it is blended with flavoring pigments, because the flavor is volatile, the smell will start to punch at the beginning, and then basically there will be no smell of sesame oil. And the flavor of real fragrant oil will last longer. After rubbing for half an hour, you can also ask about the fragrant smell of fingertips. This method is simple, reliable and most suitable for field identification.