03/17/2026
Let's chat about olive oil.
But before I do that, I want to clarify some terms used to define olive oils since these terms are often a source of confusion for many people:
Extra-virgin: means derived from the first pressing of the olives (has the most delicate flavor).
Fine virgin: created from the second pressing of the olives.
Refined oil: unlike extra-virgin and fine virgin olive oils, which only use mechanical means to press the oil, refined oil is created by using chemicals to extract the oil from the olives.
Pure oil: a bit of a misnomer, it indicates oil that is a blend of refined and virgin olive oils.
Ok, now we have that out of the way, if you’re cooking over high heat, don’t choose olive oil. Olive oil has a lower smoke point—the point at which an oil literally begins to smoke (olive oil’s is between 365° and 420°F). When you heat olive oil to its smoke point, the beneficial compounds in oil start to degrade, and potentially health-harming compounds form.
Use it when you’re making salad dressing or sautéing vegetables over medium heat, olive oil is an excellent choice. Since it has a distinct flavor, use it in dishes where you want to taste it—drizzled over steamed vegetables, soup or bread, for example.
Olive oil has more monounsaturated fat than other oils, making it a great choice for heart-healthy cooking.
But, there's a bad side to it all. Fraudulent oil, that is, oil that is not 100 percent olive oil but a mix of olive oil and seed oils is an ongoing problem in the U.S. University of California at Davis did a study and found out almost 70 percent of the store-bought olive oils were found not to be extra virgin.
In Europe, you’re breaking the law if you’re mixing refined oil with extra virgin and still labeling it 100% extra virgin. Producers can be fined and penalized for that. But in the U.S., no one is pulling oil off the shelf to test olive oils. If that did happen, there would be little to no repercussions.
OK, so how do you find pure oil? Good question and not as easy as you think.
First, try looking for Identifiers of Authenticity — Unfortunately, to give it the smell and taste test, you first have to buy the bottle. But there are a couple of ways to identify imposters without spending any money on companies that mislead you.
First, buy only olive oil labeled “extra virgin.” Other words like "pure", "light", "authentic", or even "cold-pressed" are meaningless and have no official industry definition.
Next, pay attention to the harvest date. Olives are harvested once a year in late fall. If your bottle has a harvest date within the last 12-14 months, it is as fresh as possible and likely real. Bottles without harvest dates are typically a mix of oils.
Look for darker glass bottles, but avoid plastic bottles.
Also, look for labels with specific details about the olives—not just the country, but the region they were grown in, the specific olive varietal used, flavor and tasting notes, and so on. Bottles with more specific information are less likely to have been diluted with fillers.
You can also look for producers that have third-party testing run on their oils and report important data, like polyphenol count and free fatty acid levels, which are important measures of quality.
Finally, look for a seal from a third-party certifier, such as the California Olive Oil Council (COOC) or the International Olive Council (IOC).
Enjoy