Ultimately, how the oil is handled after purchase dictates how long it will maintain its desirable characteristics. Oil made from fresh olives processed with efficient machinery will typically have a lower acidity level and higher polyphenols, which act as natural preservatives.
Olive Oil Shelf Life After Opening: How Long It Really Lasts
Additionally, moisture and strong odors can affect the oil, so it is best to store the bottle in a dry place away from spices or cleaning supplies. For an opened bottle of extra virgin olive oil, the window for peak quality is roughly three to six months.
An unopened bottle of high-quality olive oil, stored correctly, can last for up to two years or more, gradually losing quality over time. This degradation, often called rancidity, is a chemical process that alters the oil’s composition, making it taste stale or off.
Olive Oil Shelf Life After Opening: How Long It Really Lasts
For the highest quality extra virgin olive oil, this window is often much shorter than its absolute shelf life. The shelf life refers to the maximum time the oil is safe to consume, which can extend for years under ideal circumstances.
More About How long will olive oil last
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