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Olive Oil: When it comes to olive oil, reading the label can only get you so far. Much olive oil that claims to be “From Italy” is actually brought into Italy and re-exported from there—because they’re not technically lying if it passed through one of the ports. Olive oil may be diluted with soybean or vegetable oil, or even fabricated entirely from a cheaper oil that’s been doctored up with beta carotene and chlorophyll. You may look for the “extra-virgin” label, though one study claims that 69 percent of bottles labeled as such did not pass the test. Take advantage of tasting bars—free samples and quality control!—and look for bottles that designate specific points of origin.
Fish: The main form of seafood fraud is mislabeling: a cheaper fish passed off as a more expensive one. The major offenders involve fish with ugly names masquerading as their prettier-sounding, pricier counterparts (toothfish for Chilean sea bass; escolar as white tuna; threadfin slickhead as Alaskan cod), and in a study conducted between 2010 and 2012, ocean conservation organization Oceana found that every single sushi restaurant tested in New York carried mislabeled fish. Not only does this mean the customer overpays, but the fish that end up on the plate are often ones you wouldn’t want to eat in the first place. Escolar, which often shows up instead of tuna, contains histamines that can cause very disturbing side effects—think diarrhea, but oilier. The FDA currently advises against “importation and interstate marketing” of escolar, and the fish is flat-out banned in Japan and Italy. To guard against seafood fraud, watch out for snapper and tuna, the most defrauded varieties. Oceana’s findings may make you want to stop eating sushi altogether, but resources like Monterey Bay Aquarium’s Seafood Watch and Trace and Trust are on your side.
Balsamic Vinegar: Traditional balsamic vinegar is aged in oak casks for years and, like wine, must adhere to strict codes. But after drizzles of balsamic vinegar reduction found their way to every restaurant table, the market became, very literally, diluted. Don’t be fooled if the bottle says “Modena” (as in, the Italian city known for balsamic). For the real high-end stuff, look for “grape must” in the ingredient list or the designation Aceto Balsamico Tradizionale, which will guarantee the vinegar has been aged at least 12 years. For an ingredient in salad dressings, no need to raid the ancient Italian cellars, but avoid added sugar or caramel coloring at all costs.
Vanilla: The second most expensive spice is also ripe for the faking. Vanilla extract is an aged solution of vanilla beans macerated in alcohol and water, and is the most common form of vanilla over the pricier whole beans. Much imitation vanilla is made from vanillin, an organic compound that does occur naturally in vanilla beans but more often is synthesized in a lab, and makes no bones about being a cheaper, if inauthentic, alternative. But synthetic vanillin often sneaks into extracts claiming to be pure. Real vanilla contains 4-hydroxybenzaldehyde, not found in the artificial stuff, but when you don’t have your science kit handy, just glance at the ingredient list. If vanillin is listed, it’s likely synthetic. Added sugar? High-fructose corn syrup? Stay away.
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Coffee: Ground coffee can easily be bolstered by anything powdered and brown, coffee husks if you’re a lucky dupe, or even twigs, roasted corn, or ground-up toasted parchment paper. This is just one more reason to buy your coffee whole.
Cinnamon: Most of the cinnamon sold in the U.S. is cassia, not cinnamon. Cassia, grown mainly in Vietnam or China, is related to Ceylon, which is considered the “real” cinnamon. The cassia bark is hotter and more abrasive than the lighter, more aromatic Ceylon. The sticks are fairly easy to tell apart—Ceylon quills are composed of many paper-thin layers rolled up, while Cassia is a single sheet of bark—but once the “cinnamon” is ground, the anonymous brown dust might be neither Ceylon nor Cassia but something else entirely. The most common offender in this cinnamon fraud is coffee husks—nice in a coffee cherry tea, if that’s what you’re going for, not so great in your scones. Look for real Ceylon cinnamon on the label.
For the rest of the most common counterfeit foods, visit BonAppetit.com.
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