Sesame oil is sesame oil, which is refined and processed from sesame seeds.
Sesame oil, also known as sesame oil and sesame oil, is extracted from sesame seeds. It is called sesame oil because of its special fragrance. According to the extraction method, it is generally divided into machine-pressed sesame oil and small-ground sesame oil. Small-ground sesame oil is a traditional craft sesame oil.
Consumers can identify sesame oil from the following aspects when buying it:
Look at the color: pure sesame oil is light red or red with yellow. If it is mixed with other oils, Color is different. It is dark yellow when mixed with rapeseed oil, and black and red when mixed with cottonseed oil. For products mixed with other vegetable oils, the water test method can also be used: use chopsticks to dip a drop of sesame oil onto the calm water. The pure sesame oil will show large, colorless and transparent thin oil flowers, while the adulterated ones will appear smaller. Thick and smaller oil flowers.
Second, look at the transparency: Generally, good quality sesame oil has good transparency and no turbidity.
Thirdly, check whether there is any sediment: good quality has no sediment or suspended matter and low viscosity.
Fourth, check whether there is stratification: sesame oil is quite sensitive to temperature, so it may stratify when the temperature is low. If there is stratification at room temperature and no significant increase in viscosity at 0°C (the national standard is that when it is stored at 5.5°C at zero degrees Celsius during the freezing test, it is qualified if it does not freeze) and it does not condense, it is likely to be adulterated mixed oil. If there is no stratification at any temperature, it means that antifreeze additives are added to the sesame oil.
Five checks: Check the trademark carefully, pay attention to the shelf life and factory date, and be particularly vigilant if there is no factory name, factory address, or quality standard code. Pay special attention to its raw materials or ingredients (the words "preparation" are especially small).
Sesame oil is divided into two categories according to its fragrance characteristics:
The first is sesame oil, which has a strong or obvious sesame oil fragrance. The unique ingredients in sesame are processed by high-temperature frying technology to generate substances with special fragrance, which gives sesame oil a unique fragrance that is different from other edible vegetable oils, so it is called sesame oil. According to the processing technology, sesame oil is divided into two types: small ground sesame oil and machine-made sesame oil.
The second is ordinary sesame oil, which has a light fragrance. It is processed and prepared by general pressing method, leaching method or other methods.
Because sesame oil contains a certain amount of vitamin E and sesame phenol, sesame phenol forest and other substances unique to sesame oil, these substances have extremely strong antioxidant capabilities, so sesame oil is more suitable for storage than other vegetable oils.