Walk into any decent deli or supermarket and you'll find the olive oil section dominated almost entirely by Italian branding. Beautiful bottles, evocative label design, names that conjure up Tuscany and centuries of tradition. It's compelling — and it's also, quite often, something of a marketing triumph over substance. Because if you look at where the world's best olive oil actually comes from, and where most of the world's olive oil actually originates, Greece features far more prominently than most people realise.
The Numbers First
Greece produces roughly 20% of the world's olive oil — around 300,000 to 350,000 tonnes in a good year — and is consistently the third-largest producer globally after Spain and Italy. But here's the thing: Greece consumes an enormous proportion of what it produces. Per capita, Greeks consume more olive oil than any other nation on earth — around 12–15 litres per person per year, compared to about 3 litres for Italians and a fraction of that for most Northern Europeans.
The consequence is that Greece has historically exported much of its oil not in branded bottles but in bulk — sold to Italian producers who blend it, bottle it under Italian labels, and sell it at a premium. This has been changing in recent years as Greek producers increasingly bottle and market their own oil, but the practice still shapes how olive oil is perceived globally. The result: Greek olive oil, one of the world's finest, is systematically undervalued.
Flavour: What to Expect from Each
The flavour of any olive oil is determined primarily by the olive variety, the terrain and climate in which it was grown, and the timing and method of harvest. Both Greece and Italy produce extraordinary oils — but they tend toward different flavour profiles.
Greek olive oil is predominantly made from the Koroneiki olive — a tiny, incredibly oil-rich variety that produces oil with a distinctive character: robust, peppery (that satisfying throat catch, which signals high polyphenol content), grassy, and assertively green when fresh. It's an oil with opinions. Some find it intense; those who appreciate olive oil proper consider it one of the world's benchmark varieties.
Italian olive oil is made from dozens of regional varieties — Frantoio, Leccino, Coratina in the south, Taggiasca in Liguria, Nocellara in Sicily — and the flavour range is correspondingly wider. Tuscan oils tend to be herbaceous and peppery; Ligurian oils are mild and buttery; Sicilian oils can be bold and fruity. This diversity is a strength of Italian production, but also means that "Italian olive oil" on a label tells you relatively little about what you're actually getting.
Polyphenols: The Nutritional Edge
Polyphenols are the naturally occurring plant compounds responsible for much of olive oil's health reputation. They're also responsible for bitterness and pungency — so high-polyphenol oils tend to be more assertive in flavour. Research consistently shows that Greek extra virgin olive oil, and particularly oil made from Koroneiki olives harvested early in the season, tends to have among the highest polyphenol concentrations of any olive oil in the world.
The early harvest is crucial. Olives harvested while still slightly green and unripe have higher polyphenol content than those left to ripen fully. Many of the best Greek producers now emphasise their early-harvest credentials. If the throat tickles after you taste it neat, that's the oleocanthal — a polyphenol with anti-inflammatory properties similar to ibuprofen — doing its job.
The PDO and PGI System
Both Greece and Italy have Protected Designation of Origin (PDO) and Protected Geographical Indication (PGI) designations for regional olive oils. These are worth knowing about:
- Greek PDOs: Kalamata (Peloponnese), Sitia (eastern Crete), Kolymvari (western Crete), Laconia, Lesvos, Rhodes, and several others. These designations guarantee that the oil was produced in the named region from approved varieties.
- Italian PDOs: Numerous — Toscano, Umbria, Riviera Ligure, Valli Trapanesi (Sicily), and many more. Italy has the largest number of PDO olive oil designations of any country.
A PDO label is a useful starting point, but it's not a guarantee of quality in itself — it guarantees origin, not excellence. Single-estate oils with a named producer and a harvest date are generally the safest bet for quality.
Best Uses for Each
Given the flavour differences, the two styles suit slightly different applications:
- Greek olive oil excels as a dipping oil for bread, as a dressing for robust salads (Greek salad being the obvious and perfect example), drizzled over grilled fish or meat, stirred into soups and stews, or used in cooking where its assertiveness is an asset rather than a distraction.
- Mild Italian oils (Ligurian or early-harvest Sicilian) work beautifully on delicate dishes — light pasta with shellfish, carpaccio, dishes where you want the oil's presence felt but not dominated by pepper and grass.
For everyday cooking — roasting vegetables, sautéing, making sauces — Greek olive oil is often the better choice: its high polyphenol content makes it more stable at cooking temperatures, and its robust flavour contributes positively to the finished dish.
How to Read a Label and Buy Well
A few things to look for when choosing olive oil:
- Harvest date: Not a best-before date, but the actual harvest date. Fresh is everything with olive oil. Look for oil from the most recent harvest (typically October–January in the Mediterranean).
- Acidity %: Extra virgin olive oil must have less than 0.8% free acidity. The best oils are typically below 0.3%. Lower is better.
- Single estate vs blend: A named estate with a specific location offers traceability and accountability. A blend from "Mediterranean countries" offers neither.
- Dark bottle or tin: Light degrades olive oil. Good producers package in dark glass or tins to protect quality.
- Country of origin: Not "bottled in" — where the olives were actually grown and pressed.
Here at Back to Nature Co, we source Greek extra virgin olive oil that meets all of these criteria: single estate where possible, early harvest, Koroneiki variety, dark packaging. Because we believe the best olive oil in the world deserves to be properly recognised — and properly used.