What does “extra virgin” mean?
First, olive oil is considered “extra virgin” when it has been produced by a simple pressing of the olives. Other grades like “olive oil” are usually produced using chemicals and other processes to extract the oil from the olives. Second, extra virgin must meet certain laboratory tests on things like acidity and levels of peroxide. Finally, extra virgin olive oil must taste like olives and it can’t have any negative tastes that professionals refer to as “defects.”
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