Learn

Short, practical guides from the panel that tastes and scores every oil in the library.

These are the working notes behind the scores: how we taste, what the three positives actually are, why colour tells you nothing, and how to keep a good oil from going flat before you finish the bottle.

Each guide is written by a member of the tasting panel and revised as the method changes. Where a guide names an oil, it links to that oil's entry in the library so you can taste along with it.

Categories

7 categories · 11 guides
Tasting & judging

How the panel scores fruitiness, bitterness and pungency, and how to taste at home.

1 guide
Kitchen & storage

Decanting, dark glass, heat, and how long an open bottle really lasts.

1 guide
Buying & labels

Harvest dates, designations and the small print that tells you what is in the bottle.

3 guides
Science & numbers

Polyphenols, acidity, methods and what the figures on a technical sheet really measure.

3 guides
Varieties

The olive behind the oil: what each cultivar tends to taste like and why.

1 guide
Regions

Jaén to the Edremit Gulf: the habits of each producing country and region.

1 guide
Competitions

How the medals are judged, what they mean, and which tables we republish.

1 guide
Buying & labels

What the harvest date on the label really tells you

A bottle of extra virgin carries up to a dozen claims. Two of them tell you how fresh it is, one tells you how it was made, and the rest are decoration. Here is how to read them.

Read the guide
A row of extra virgin olive oil bottles, labels facing out

More guides

What the panel is writing next
Photo
TastingHow to taste olive oil like our panel does6 min read
Photo
StorageWhy your oil goes flat, and how to stop it5 min read
Photo
ScienceOlive oil polyphenols, explained: what the number means7 min read
Photo
ScienceIs high-phenolic olive oil worth the price?6 min read
Photo
ScienceAcidity: what 0.2% means, and why you cannot taste it4 min read
Photo
BuyingPDO and PGI olive oil: what the seals guarantee, and what they don’t6 min read
Photo
BuyingEarly harvest: what changes when the olives are picked green6 min read
Photo
VarietiesTwelve olive varieties, and what each one tastes like7 min read
Photo
RegionsGreek, Italian, Spanish, Turkish: the four styles, by region6 min read
Photo
CompetitionsHow olive oil competitions work, and what a Gold is worth6 min read