Olive oil fraud happens when an olive oil is not what it purports to be. It has happened a lot over the years, but greater enforcement (and people learning how good olive oil should taste) are making fraud much less common these days.
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 six-day Olive Oil Sommelier Certification courses in New York, London and California.