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Storage and Preservation Tips

How Long Cooking Oil Is Good For After Being Opened - And When To Throw It Out By Laura Christine Allan Oct. 23, 2025 4:20 pm EST

When you think of pantry staples that seem to last forever, cooking oil probably comes to mind. However, even that has an expiration date, and it's probably sooner than you'd expect. It's true that not all oil is created equal , so each one has a slightly different time it goes off by. In general, though, you shouldn't keep an open bottle of oil for more than a few months.

When closed and fresh, a bottle of olive oil or vegetable oil can still be usable for a year and a half to two years. That being said, the USDA instructs that an open bottle of olive or vegetable oil should be disposed of after only four month

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