Brief
You can use an unopened bottle after its expiration date, but don’t expect it to taste very good (unless it was very good olive oil to begin with). Use it for cooking or frying, instead of for finishing dishes.
For more quick answers to your olive oil questions, ask Ollie — a bot developed by the Olive Oil Times Education Lab that uses artificial intelligence to help people learn more about olive oil.
Want to be an olive oil expert? The Olive Oil Times Education Lab offers courses in New York, London and online.