Extra virgin olive oil has a maximum acidity of 0.8% and can have no defects. Virgin olive oil can have acidity up to 2.0% and a median of defects between zero and 2.5 in a tasting by a trained panel. In other words, extra virgin olive oil tastes better and is healthier for you. But virgin olive oil is still better than other cooking oils and can cost less than EVOO.
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