Your Olive Oil Is Almost Certainly Fake

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Your Olive Oil Is Almost Certainly Fake

Real extra virgin olive oil can cut your cardiovascular risk by 30%. The bottle in your kitchen probably isn't real extra virgin olive oil — and the Italian mafia, a broken testing system, and a labelling loophole the size of a supertanker are the reason why.

Think about the last bottle of olive oil you bought. There was probably an Italian flag on the label. Maybe a farmhouse. Possibly an old man pressing olives with his bare hands, or words like 'cold pressed' and 'stone ground' in a pleasingly rustic font. You paid a bit more than you would for vegetable oil, and that felt like the correct decision.

There is a reasonable chance the bottle contained no Italian olives whatsoever. A significant chance the oil inside wasn't cold pressed. A very good chance that what you actually bought was cheap seed oil — sunflower, soybean, or canola — chemically deodorised, tinted green with chlorophyll, given a small amount of actual olive oil for flavour, and sold to you at a premium.

Tom Mueller, the investigative journalist who spent years digging into the global olive oil industry for a New Yorker exposé and a subsequent book, put the figure bluntly: 75 to 80% of the olive oil labelled 'extra virgin' that reaches American and European supermarkets is not actually extra virgin. In a 60 Minutes interview, CBS News shipped three bottles of bestselling supermarket olive oil to a panel of trained Italian tasters. Two failed. One was classified as lampante — the lowest grade of olive oil, technically not safe for human consumption without further refining.

That brand, the CBS reporter noted, happens to be one of the bestselling in America.

What 'Extra Virgin' Actually Means

'Extra virgin' is not a marketing term. It's a legal designation with a specific technical definition, set by the International Olive Council and adopted into EU and USDA regulations. To qualify, an oil must be made exclusively from olives, using mechanical methods only — no heat treatment, no chemical solvents. The free acidity must be below 0.8 grams per 100 grams of oil. It must pass both a chemical analysis and a sensory evaluation by trained tasters who check for defects — mustiness, rancidity, fustiness, the sour-wine smell of fermentation.

The point of all this is that extra virgin olive oil is, in the words of the producers who actually care about it, fresh-squeezed fruit juice. Olives start deteriorating from the moment they're picked. Real extra virgin is seasonal, perishable, and at its best within the first few months of production. The bottle sitting in your pantry for two years, slowly going rancid under the fluorescent light, is not extra virgin olive oil regardless of what the label says — even if it started out as the genuine article.

Below extra virgin, there's 'virgin olive oil' (acidity up to 2%), then 'refined olive oil' (chemically processed to remove defects), then 'olive oil' (a blend of refined and virgin), then 'olive-pomace oil' (extracted from the leftover paste using chemical solvents). Each grade has its legitimate uses. None of them should be in a bottle labelled extra virgin.

What You're Actually Buying

The fraud works at multiple levels, which is part of why it's so persistent.

The simplest version: take cheap seed oil — usually sunflower, soybean, or canola, which costs a fraction of real olive oil — add a small amount of genuine olive oil for flavour, tint the whole thing with chlorophyll to achieve the expected green colour, and bottle it with an Italian label. The consumer tastes it, thinks it tastes fine, and has no idea. Most people have never tasted real extra virgin olive oil. The fake stuff tastes like what they expect olive oil to taste like, because it's what they've always bought.

A more sophisticated version involves deodorised olive oil. Take ordinary olive oil with defects — rancid batches, damaged fruit, oil pressed from mouldy olives. This oil is technically unusable. But run it through a low-temperature refining process and most of the chemical evidence of those defects disappears. The resulting oil is bland, colourless, and tasteless. Blend it back in with a small amount of real extra virgin, and you have something that passes a casual inspection. This is what the industry insiders call 'rectified' oil, and it's the fraud that trained tasters catch — the oil has been stripped of the fruity, slightly bitter, peppery character that genuine EVOO always has.

Who's Running It

This isn't just corner-cutting by careless producers. It's organised crime.

The Calabrian mafia — the 'Ndrangheta — has deep involvement in Italian agricultural fraud, and olive oil is one of its most profitable streams. In 2016, Italian police seized more than 7,000 tonnes of counterfeit olive oil in a single operation. The Piromalli clan, one of the 'Ndrangheta's most powerful families, was found to have been labelling low-quality adulterated oil as extra virgin and exporting it to the United States. A source quoted in Mueller's reporting described the trade in terms that made the economics obvious: 'cocaine trafficking profits with none of the risks.'

Italian police have run operations with names like Olio di Carta ('Paper Oil') and Mamma Mia specifically targeting olive oil adulteration networks. Europol's Operation OPSON — a joint investigation across 29 European countries — has repeatedly identified olive oil as among the most commonly fraudulent food products in Europe, alongside mislabelled tuna and expired products with fake dates.

The major branded companies — Bertolli, Carapelli, Sasso, Colavita, Filippo Berio — have all been the subject of fraud investigations or class action lawsuits at various points. Most have denied wrongdoing and pointed to contested testing methodology. Some have been exonerated. Some investigations are ongoing. The net effect is a market in which neither brand recognition nor premium pricing reliably indicates quality.

Why It Actually Matters

Here's the thing that makes this more than just consumer annoyance: the health benefits of olive oil are real, they're substantial, and they're almost entirely dependent on the oil being genuine.

The PREDIMED trial — Prevención con Dieta Mediterránea, a Spanish study that followed 7,447 people over nearly five years — is one of the most rigorous dietary intervention studies ever conducted. The group consuming a Mediterranean diet supplemented with genuine extra virgin olive oil saw a 30% reduction in major cardiovascular events compared to a control group on a low-fat diet. A sub-study found a 68% reduction in breast cancer incidence in the EVOO group. These are not marginal results.

The mechanism is polyphenols — specifically compounds like hydroxytyrosol and oleocanthal, which have anti-inflammatory, antioxidant, and cardioprotective properties. These compounds are present in genuinely fresh, properly made extra virgin olive oil. They're absent — or present in negligible quantities — in refined oil, old oil, adulterated oil, and oil that's been sitting in a clear glass bottle under supermarket lighting for six months.

"Once someone tries a real extra virgin — an adult or a child, anybody with taste buds — they'll never go back to the fake kind. It's distinctive, complex, the freshest thing you've ever eaten. It makes you realise how rotten the other stuff is. Literally rotten."

— Tom Mueller, Extra Virginity (2011)

How to Actually Find Real Oil

The good news is that genuine extra virgin olive oil exists and isn't impossible to find. The detection technology — nuclear magnetic resonance testing — can identify 95% of adulteration. The problem is coverage: Coldiretti estimates only around 10% of oil is tested before it reaches consumers.

What actually correlates with quality, based on Mueller's research and independent testing:

The bottle with the Italian flag was always a story. The farmhouse, the old man, the cold press — all of it is branding, and branding is not regulated the same way ingredients are.

The oil that actually does what decades of Mediterranean diet research says it does is seasonal, fresh, slightly expensive, and tastes aggressively of olives. It's not what most people have in their kitchen.

The fraud has been documented since ancient Rome. The scale is new. The testing to stop it exists. It just isn't being used.

Ten per cent of oil is checked before it reaches you.

SOURCES

Mueller, T. — Extra Virginity: The Sublime and Scandalous World of Olive Oil. W.W. Norton & Company (2011).

Mueller, T. — 'Slippery Business,' The New Yorker (August 2007). The original exposé.

60 Minutes / CBS News — 'Agromafia: How the Italian mob is selling counterfeit olive oil.' Correspondent Bill Whitaker (2016).

UC Davis Olive Center — 'Evaluation of Extra-Virgin Olive Oil Sold in California.' Report, July 2010.

Estruch, R. et al. — 'Primary Prevention of Cardiovascular Disease with a Mediterranean Diet' (PREDIMED trial). New England Journal of Medicine (2013). DOI: 10.1056/NEJMoa1200303

Toledo, E. et al. — 'Mediterranean Diet and Invasive Breast Cancer Risk Among Women' (PREDIMED sub-study). JAMA Internal Medicine (2015). DOI: 10.1001/jamainternmed.2015.4838

Tsartsou, E. et al. — 'Network Meta-Analysis of Metabolic Effects of Olive-Oil in Humans.' Frontiers in Nutrition (2019). DOI: 10.3389/fnut.2019.00006

Coldiretti (Italy's largest agricultural association) — statistics on olive oil interception rates. Cited in multiple press reports.

Europol — Operation OPSON XIII results. Europol.europa.eu (2024).

Italian Carabinieri / Guardia di Finanza — Operations 'Olio di Carta' and 'Mamma Mia.' Press releases and court documents cited in press.

Foodnavigator.com — 'Olive Oil a Major Target for Food Fraud.' May 2025.

Olmsted, L. — Real Food / Fake Food. Algonquin Books (2016). Cites supermarket testing results.

Olivea / Myolivea — 'How to Tell if Your Olive Oil is Real.' 2025. Cites 2024 Italian inspection figures (1 in 4 samples irregular).

NPR — 'Olive Oil Fraud Rampant as Demand Skyrockets.' Interview with Tom Mueller. 2007.

NYIOOC — New York International Olive Oil Competition annual rankings. Bestoliveoils.com.

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