Every lot of oil we bottle is tasted before it is named. Not admired — tasted, in the way a certified panel tastes: in a blue glass, warmed in the palm, judged on three qualities and checked for a short list of faults. It takes about ninety seconds per oil and it is the single most useful skill anyone who buys olive oil can learn. Once you have it, no label can lie to you again.
Why the glass is blue
Official tasting panels use a tulip-shaped cobalt-blue glass with a watch-glass lid. The blue hides the oil’s color, because color proves nothing — a deep green oil can be tired and a pale gold one can be electric — and tasters are easily biased by it. The tulip shape concentrates aroma; the lid traps it while the glass warms. You do not need the official glass. A small wine glass and your other hand over the top will get you most of the way there.
The method, step by step
- Pour and warm. A tablespoon of oil in the glass. Cup the bowl in one palm, cover with the other, and hold for a minute. The aromatics wake near body temperature (the panels aim for 28°C) and a cold oil tells you very little.
- Smell. Uncover and take two slow breaths. You are looking for green things: cut grass, artichoke, tomato leaf, green almond, fresh herbs; in riper oils, apple, banana, a sweet nuttiness. This is fruitiness, the first of the three positive attributes, and it is the smell of healthy fruit crushed within hours of picking.
- Sip. Take a small sip and move it across the whole tongue. A clean bitterness along the middle and sides is bitterness, the second positive attribute — the direct signature of the oil’s polyphenols. It should be bright and defined, never dull or harsh.
- Strip. Now the panel’s trick, called strippaggio: with the oil still in your mouth, close your teeth, part your lips and pull a short, sharp breath of air across it two or three times. This vaporizes the aromatics and drives them up into the nose. Then swallow.
- Wait for the pepper. Two seconds after swallowing, a heat catches low in the throat. That is pungency, the third attribute, and it is caused specifically by oleocanthal — the compound that makes a fresh oil cough-inducing and that we describe in full on our polyphenols page. One cough is a compliment. Two is a very good oil.
Between oils, a slice of green apple and a sip of room-temperature water clear the palate. Taste no more than four or five oils in a sitting; the pepper builds and the palate tires.
The defects a panel is trained to catch
An oil earns the extra virgin grade only if a panel finds zero defects. These are the ones that disqualify most supermarket bottles, and once you have met each one you will recognize it instantly.
- Rancid — crayons, stale nuts, old walnut, putty. Oxidation. The most common fault by far in oil that has sat too long in clear glass under shop lights. Our guide to whether olive oil expires explains how it happens.
- Fusty — a muddy, fermented, slightly sweaty note. Olives left in heaps too long before milling, fermenting under their own weight.
- Musty / humid — damp cellar, wet cardboard. Mold on fruit stored in humid conditions.
- Winey / vinegary — a sour, acetic edge. Another fermentation fault.
- Metallic — a tinny flatness from prolonged contact with reactive metal surfaces.
Notice what is not on the list: bitterness and pungency. Beginners often mistake them for faults. They are the opposite — the proof that the antioxidants are still alive. A perfectly smooth, buttery, inoffensive oil with no bite has usually lost them. If you want to go deeper on the laboratory side of this, our quality page explains the chemistry behind what the tongue is reporting.
Reading our oils
Every oil in the range is a single harvest from a single grove, so the tasting notes change a little each year — and we think they should. Broadly:
- Organic Calabrian Extra Virgin — medium fruity. Green almond, fresh-cut grass, a thread of tomato leaf; a rounded bitterness and a clean, lingering pepper. The oil we cook with every day.
- ETRURIUM Tuscan IGP — robust. Artichoke, black pepper, wild herbs; assertive bitterness and a pungency that arrives late and stays. Built for finishing.
Pairing: match intensity to intensity
The one rule that never fails. A big, bitter oil bullies a delicate plate; a mild oil vanishes on a robust one. Put the pepper where there is something to push against.
For a robust oil
Grilled steak and lamb; bitter greens such as chicory, puntarelle and cavolo nero; ribollita and warm cannellini beans; aged pecorino and Parmigiano; roasted squash; anything with char or smoke. A fierce oil over a bowl of white beans with black pepper is the whole argument for Tuscany in one plate.
For a medium or delicate oil
Raw fish and crudo; grilled white fish; fresh mozzarella, burrata and ricotta; raw summer tomatoes; steamed vegetables; olive oil cake and anything sweet. Here the oil accompanies rather than leads — it should make the ingredient taste more like itself.
Bread, salt and oil
Still the best test in the world, and the way we serve new oil in November. Tear a piece of honest bread, pour a generous pool onto a plate, dip, add a few flakes of sea salt. No vinegar, no herbs. We wrote the full ritual up in the Italian art of dipping bread in olive oil.
Take it into the kitchen
Once your palate is tuned, the recipes show where each oil belongs — and why the last raw pour, added off the heat, is so often the one that matters. If you would like to taste rather than read, explore the range. Every bottle carries its harvest date; taste it against whatever is in your cupboard now, in a blue glass or not, and the difference will explain itself.