The Olympian Journal

What we have learned about olive oil, written plainly.

• The Olive Harvest in the Peloponnese: From Tree to Tin — Nets under the trees, a race to the mill, and one cool night that decides the year. How Koroneiki olives become the oil in your tin.
• Frying in Real Olive Oil: What Restaurants Know — Greek kitchens have always fried in olive oil. Smoke points, deep-frying temperatures, extra virgin or a frying blend, and how to reuse the oil.
• Greek, Italian or Spanish Olive Oil: What Is the Difference? — Spain makes the most, Italy bottles the most famous brands, and Greece makes some of the most extra virgin. What the origin on a label really tells you.
• What Cold Extracted Actually Means — Every serious tin says cold pressed or cold extracted. Almost none explain it. The 27-degree rule, why heat buys yield and costs flavor, and why first press is a ghost of another century.
• Why Is My Olive Oil Going Bad? The Four Enemies of Good Oil — Heat, light, oxygen and time quietly destroy good oil - and the cabinet above your stove is the worst place in the kitchen. Plus why the fridge test is a myth.
• Is My Olive Oil Real? The 30-Second Test Every Kitchen Needs — Up to 69% of supermarket “extra virgin” isn’t extra virgin at all — refined, oxidized, or cut with cheaper oils. Here’s a simple test you can run at home.
• Why Does Olive Oil Burn Your Throat? The Science Behind the Sting — That peppery, throat-catching burn isn’t a flaw — it’s one of the most meaningful quality signals in food, and the compound behind it is remarkable.
• What Is the Best Olive Oil for Health? A Scientist’s Guide — Olive oil’s health benefits aren’t universal — they depend almost entirely on what’s actually in the bottle. Here’s exactly what to look for.
• How to Read an Olive Oil Label — Most labels are designed to sound like they answer questions they carefully avoid. The five lines that matter, the three phrases that mean nothing, and the missing date that tells you the most.
• The Only Number on the Bottle That Matters — Best-before dates are set by the seller. Harvest dates are set by the tree. Why olive oil is a fruit juice with a clock.
• Why Supermarket Olive Oil Is a Different Product — Same words on the label, different substance in the bottle. How blending, bulk tanks, age and shelf economics quietly turn extra virgin into something else.
• Can You Cook With Extra Virgin Olive Oil? — The most repeated warning in the oil aisle is wrong. What the research shows about heat and smoke points, and why stability matters more than the number.
• Is Expensive Olive Oil Worth It? — What the price of a bottle actually pays for, where expensive is justified, where it is a scam, and the simple math of the everyday pour.
• What Polyphenols Actually Do — The peppery catch at the back of your throat is a polyphenol called oleocanthal announcing itself. What these compounds do in the oil, and in you.
• Koroneiki: The Queen of Olives — One small Greek olive makes much of the world’s best extra virgin oil. Why Koroneiki punches so far above its size, and what that means for what you taste.