Exposure to oxygen, light, and heat accelerates oxidation, breaking down the delicate compounds that give olive oil its flavor and aroma. Always check for signs of rancidity before using olive oil, regardless of the date on the label.
Understanding Olive Oil Expiration and Spoilage Signs
Understanding Expiration Dates Most bottles of olive oil come with a "best by" or "use by" date. Blends of olive oil and other oils also have varying stability depending on the composition.
Keep it in a cool, dark place, such as a pantry or cabinet, away from heat sources and direct sunlight. Avoid purchasing large containers that you won’t use quickly, and never refill an empty oil container, as this exposes the oil to air and contaminants.
Understanding How Olive Oil Goes Bad Over Time
Heat and light exposure speed up oxidation, causing the oil to go rancid faster. Type of Olive Oil Extra virgin olive oil (EVOO) has the shortest shelf life because it retains more natural compounds and is less processed.
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