Olive oil is an essential in the kitchen: It's a champion for caprese salad and sautéed everything, plus it brightens baguette, vegetables, and virtually all meat dishes. But the EVOO we're using to stock our pantries could be fooling us all. In a recent test, the National Consumers League (NCL) found that six of 11 bottles marked extra virgin olive oil were, in fact, not "extra virgin."

The bottles came from supermarkets such as Whole Foods, Trader Joe's, Safeway, and Giant and while they were labeled as "extra virgin," more than half of them did not meet the standards set by the International Olive Council. The term extra virgin means that the olives have not been treated with heat or chemicals when being pressed for oil. Extra virgin olive oil is technically fruit juice sans defects and without any other oils added to it. Most of the impostors may have been treated improperly or have had cheaper oils, like soybean, added to them. There is a bit of good news, though—the NCL identified the five that passed the test. They include:

  • California Olive Ranch "Extra Virgin Olive Oil"
  • Colavita "Extra Virgin Olive Oil"
  • Trader Joe's " Extra Virgin California Estate Olive Oil"
  • Trader Joe's "100% Italian Organic Extra Virgin Olive Oil"
  • Lucini "Premium Select Extra Virgin Olive Oil"

This mislabeling news doesn't come as a full shock, especially after last year's exposé in the New York Times; however, it still gives us pause. More than half of the oils in the grocery aisle are misleading us—how are we to tell which are truly what they claim to be? Unfortunately, the U.S. standards for olive oil are very lax, allowing for both deceit and mistakes in the labeling of grades, origins, and methodologies. To avoid being misled, the NCL suggests that shoppers choose brands that have consistently passed testing (like the ones listed above), double check the "best by" dates, and pass on oils in clear glass bottles (dark glass keeps light out and preserves the oil for longer). We wish the NCL had published the six brands that failed the test, so we'd know which bottles to avoid.

(h/t TIME)

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