1, Step 1, prepare a clean empty bowl and a chopstick, and then add cold water to the empty bowl.

2. Step 2: Dip chopsticks into a drop of fragrant oil in calm cold water and observe the oil drops on the water surface at this time.

3. In the third step, the pure sesame oil will appear colorless and transparent fine flowers on the water surface, while the fake sesame oil flowers on the water surface are small and thick, which are not easy to spread. The picture below shows real sesame oil on the left and fake sesame oil on the right.

Extended data:

Characteristics of mixed sesame oil;

1, pure sesame oil is brownish red or orange red, and the oil body is translucent. If rapeseed oil is mixed into sesame oil, the color of blended sesame oil is dark yellow; If cottonseed oil is mixed into sesame oil, the blended sesame oil is dark red in color.

2. The fragrance of sesame oil is mellow and rich. If linseed oil is mixed with sesame oil, the blended sesame oil has a fishy smell; If peanut oil and soybean oil are mixed into sesame oil, the mixed sesame oil has the smell of peanuts and beans.

Baidu encyclopedia-sesame oil

People's health network-how to buy sesame oil