How long is the shelf life of unopened cooking oil?

Unopened cooking oils usually have a long shelf life, but the exact length of the shelf life depends on the type of cooking oil and the storage conditions. Typically, the shelf life of common cooking oils can be found on the bottle or label and will usually be between 1 and 2 years.

Different types of cooking oils may have different shelf lives. Generally speaking, cooking oils with a high fatty acid content such as olive oil, flaxseed oil, peanut oil, corn oil, canola oil, etc. will have a slightly shorter shelf life of about 1 year. Edible oils with lower fatty acid content, such as vegetable oil, sunflower oil, rice bran oil, etc., generally have a slightly longer shelf life, about 1 to 2 years.

It is worth noting that storage conditions also have an impact on shelf life. Cooking oil should be stored in a cool, dry, light-proof place, avoiding excessive temperatures and direct sunlight. In addition, avoid getting water or other impurities into the cooking oil, as this may affect the quality and shelf life of the cooking oil. Once opened, the shelf life of cooking oil will be significantly shortened and it is recommended to use it up within 1 to 2 months.

It should be emphasized that the above shelf life applies only to unopened cooking oil. If the cooking oil has expired, opened, or has an abnormal taste, color change, or turbidity, it is recommended that you do not use it in order to prevent the cooking oil from becoming rancid, which could have an adverse effect on your health.