1, scented oil put four years as far as possible do not have to eat, pure scented oil shelf life is generally 18 months, put into the freezer storage, the preservation period of more than 2 years. In other words, if the sesame oil to room temperature storage, please take within 18 months to finish appropriate. Sesame oil in the whole process of storage, if the air oxidation, there will be a unique flavor, known as "haram" flavor, a lot of taking this kind of material, will cause poisoning.

2. Pure sesame oil shelf life is generally 18 months at room temperature, in the refrigerator storage is up to 2 years or more, pure sesame oil is best to be taken within 18 months, do not have to go beyond the preservation period, put into the shade of a cool place to store, do not have to be stored with the dirt, resulting in the anti-taste, mold and mildew, which will have a more serious impact on the taste, but also may be transformed into a number of hazardous to the human being! "Compounds", do not eat up the expiration date. Pure sesame oil shelf life is relatively longer than the bad sesame oil, pure sesame oil is dark red or Guangdong Mahjong with yellow, crystal clear color, if it is caused by the "Halla" taste, must be taken seriously, because this time the sesame oil has been oxidized and decomposed, it is best not to eat, due to a lot of taking "Halla", it is very likely that it will be transformed into some harmful "compounds", don't finish eating. Halla", it is likely to cause poisoning.

3. Sesame oil (generally sesame oil) in the extraction with a small amount of water, and sesame oil containers (generally glass bottles, and may even be plastic bottles) will not be "vacuum packaging", the bottle with gas; therefore, in the storage of sesame oil for a long time, despite the appearance (the oil's) Therefore, in the case of sesame oil stored for a long time, even though no transformation can be seen in the appearance (taste, color, etc.), the quality of the oil itself - the quality of the oil is very likely to have already been moldy, and may be transformed into some "compounds" that are harmful to human beings, and therefore it is recommended that for the sake of physical and mental health, it is best not to apply this kind of oil as well. Therefore, it is recommended to avoid using this kind of oil for the sake of physical and mental health.