Greek Olive Oil: Varieties, Regions and Protected Names

Greek olive oil arrives in the UK trailing more reputation than any label can hold — and, unusually for a food with this much romance about it, the reputation can be checked. One variety dominates the country’s groves. A handful of regions do most of the pressing. And thirty-two Greek place-names hold Registered status in the oils and fats class of the GB protected food and drink names register, from Kalamata to a string of Cretan districts. This guide is the national map for a UK buyer: the variety, the regions, the protected names — and how to put a bottle of Greek extra virgin olive oil through the same checks as any other.

Greek olive oil is dominated by a single variety — Koroneiki, on an estimated 50–60% of the country’s olive acreage — pressed from the Peloponnese and Crete to the islands, and sold under place-names of which thirty-two are protected in Great Britain.

Plate I · ArtefactRecord

What makes Greek olive oil different?

Start with the tree. The International Olive Council’s world catalogue of olive varieties records Koroneiki as the most widespread oil variety in Greece — an estimated 50–60% of the country’s olive acreage — with its major plantations in Crete and the Peloponnese, and credits it with high oil yield and quality and a very high oleic acid content, the trait that does most to keep an oil stable in the bottle. The variety’s full story — where it came from, how its oil tastes, and why the cultivar name on a label guarantees nothing by itself — is at Koroneiki. The short version is that Greek olive oil is, to a first approximation, Koroneiki oil, and the differences between bottles are made by region, harvest timing and the mill rather than by the tree.

The scale is easy to underestimate. In the 2020/21 crop year — the one the IOC’s world overview tabulates — Greece pressed 275,000 tonnes of olive oil: a whisker ahead of Italy’s 273,500 tonnes that season, behind only Spain within an EU total of just over two million tonnes. A country that small standing that close to Italy’s output is the fact to hold on to; the register section below shows what all that pressing has done to the map of protected names.

Where is Greek olive oil made?

Almost everywhere in the country’s southern half, but four grounds carry the reputation:

• The Peloponnese. Messenia, the south-western peninsula, is the Kalamata country — and among the synonyms the IOC catalogue lists for Koroneiki is simply “Koroni”, the name of a town on this coast. Eastward over the Taygetos range lies Laconia, whose oil carries its own protected name — Λακωνία / Lakonia, a PGI first registered in the EU in June 1996 — with three more Laconian names, Petrina, Krokees and Finiki, standing on the GB register beside it.
• Crete. The register’s densest patch: nine of the thirty-two Greek names in the oils and fats class carry Κρήτης — “of Crete” — in the registered name itself. The island gets its own section below.
• The islands. Λέσβος / Mυτιλήνη — Lesbos, in the north-east Aegean — holds a PGI first registered in June 1996, and island names from Ζάκυνθος / Zakynthos and Κεφαλονιά / Kefalonia to Ρόδος / Rodos, Σάμος / Samos and Θάσος / Thassos stand on the register with it.
• The north. Chalkidiki, the three-fingered peninsula south-east of Thessaloniki, holds a PDO whose name is a style as much as a place: Αγουρέλαιο Χαλκιδικής / Agoureleo Chalkidikis — agourelaio being the Greek term for early-harvest oil pressed from green fruit.

Which Greek olive oil names are protected in Great Britain?

Filter the GB protected food and drink names register — the free, searchable service Defra publishes — to Greece and the oils and fats class, and thirty-two names come back, every one of them holding Registered status. Each was carried onto the UK’s own scheme on 31 December 2020, having first earned its EU registration years or decades earlier. A selection, exactly as the register prints them:

Two limits worth knowing. The register substantiates each name, its protection type and its status, but it does not publish the product specifications — the entries direct enquiries to Defra. And it is the GB register, not the EU one, that settles what a name is worth on a bottle sold here: the two lists are maintained separately, so the check that counts for a UK buyer is the GOV.UK search itself, and it takes about a minute.

What do PDO and PGI mean on Greek olive oil?

The register’s two protection types divide on how tightly product and place are bound, and the definitions are worth having exactly. A PDO — protected designation of origin — names a product “whose quality or characteristics are essentially or exclusively due to a particular geographical environment with its inherent natural and human factors”, where “the production steps… all take place in the defined geographical area”. A PGI — protected geographical indication — asks less: a “given quality, reputation or other characteristic” that is “essentially attributable to its geographical origin”, with at least one production step taking place in the area. Both definitions sit in assimilated Regulation (EU) No 1151/2012, which governs the scheme in Great Britain.

Read the Greek table with that split in mind and it organises itself: the PDOs are the village- and district-scale names — Kolymvari, Peza, Sitia — where growing, milling and the oil’s character are all tied to one zone, and the PGIs are the wider nets, a whole prefecture (Lakonia, Chania Kritis) or a whole island (Lesvos). Neither is a grade: a protected name guarantees place, process and certification against a written specification, and the oil must still clear the same extra virgin limits as every other bottle sold here. What both protections do carry is teeth — a registered name is protected against “any misuse, imitation or evocation”, even where the product’s true origin is indicated and even where the name is qualified by an expression such as “style”, “type” or “method”.

Fig. I · The two protectionsDiagram

How tightly product and place are bound — the register’s two protection types

PDOProtected designation of origin

The bond

Quality or characteristics “essentially or exclusively due to a particular geographical environment with its inherent natural and human factors”.

The steps

“The production steps… all take place in the defined geographical area.”

On the Greek table

The village- and district-scale names — Kolymvari, Peza, Sitia— where growing, milling and the oil’s character are all tied to one zone.

PGIProtected geographical indication

The bond

Asks less: a “given quality, reputation or other characteristic” that is “essentially attributable to its geographical origin”.

The steps

At least one production step taking place in the area.

On the Greek table

The wider nets — a whole prefecture (Lakonia, Chania Kritis) or a whole island (Lesvos).

What both carry

A definition in assimilated Regulation (EU) No 1151/2012, which governs the scheme in Great Britain — and protection against “any misuse, imitation or evocation”, even where the product’s true origin is indicated and even where the name is qualified by an expression such as “style”, “type” or “method”.

What neither is

A grade. A protected name guarantees place, process and certification against a written specification, and the oil must still clear the same extra virgin limits as every other bottle sold here.

Is Cretan olive oil different?

Different enough that the register map is lopsided. Nine of Greece’s thirty-two protected oil names carry Κρήτης in the registered name itself: the Chania Kritis PGI across the west; the Kolymvari and Apokoronas PDOs, both “Χανίων Κρήτης” — of Chania; Peza, Archanes and Viannos in Heraklion; Vorios Mylopotamos in Rethymno; Sitia in Lasithi; and the Selino entry in the south-west. Even that undercounts the island: Μεσσαρά — the plain south of Heraklion — Κριτσά / Kritsa in Lasithi and Θραψανό / Thrapsano in Heraklion are three more Cretan entries that happen not to carry the island’s name, twelve of the thirty-two in all. No other part of Greece comes close on this register.

Fig. II · The register’s Cretan patchDiagram

Greek names in the GB register, oils and fats class — one mark per entry, thirty-two in all

Carry Κρήτης — “of Crete” — in the registered name9 of 32

Chania Kritis · Kolymvari · Apokoronas · Peza · Archanes · Viannos · Vorios Mylopotamos · Sitia · Selino

Cretan entries without the island’s name3 more

Messara · Kritsa · Thrapsano — twelve of the thirty-two in all.

The rest of the register’s Greek entries

Drawn only to complete the thirty-two — the page sets no numeral against them. Every one of the thirty-two holds the same Registered status.

No other part of Greece comes close on this register.

The variety map agrees with the legal one. The IOC catalogue places Koroneiki’s major plantations in Crete and the Peloponnese, and among the local synonyms it records for the variety is Kritikia — “the Cretan one”. For this house the western end of that map is familiar ground: Chania is the region our honey side already works in, and the Chania Kritis PGI covers the same country the bees do.

What a Cretan name does not buy is a higher grade. Extra virgin’s limits bind a Sitia PDO bottle and an anonymous blend identically, and freshness, harvest timing and storage decide how good the particular bottle is, exactly as they do everywhere else. Cretan olive oil is not a super-category; it is a region with an unusually thick file of certified names — which, for a buyer who likes checkable statements, is the genuinely different part.

When is Greek olive oil harvested?

From about October into the winter, with the character of the oil tracking the calendar: fruit picked early and green gives lower yields of a more pungent, more bitter, faster-selling style, and fruit left to ripen gives more oil, softer and rounder, from the same trees. The early style is enough of an institution to have entered the register — Chalkidiki’s Αγουρέλαιο Χαλκιδικής PDO names it outright — and the trade-off behind it, in yield, flavour and measured composition, is taken apart in early harvest olive oil. The season is a rhythm, not a date: which weeks a given mill picked in is a question for the bottle’s label, and the serious ones answer it.

How do you buy Greek olive oil in the UK?

The same way you buy any olive oil here — on checkable statements — with two Greek specifics on top: the register names above, and the harvest calendar.

• Grade first. Extra virgin is a legal grade, identical for every bottle sold in Great Britain: free acidity at most 0.8%, peroxide value at most 20 mEq O₂/kg, ultraviolet absorption inside three limits (K232 at most 2.50, K268 at most 0.22, Delta-K at most 0.01), and a trained panel finding a median of defects of zero with a fruity median above zero. “Greek” adds nothing to the grade; the bottle still has to clear it.
• Then the origin, as narrow as the label will go. A designation of origin is mandatory for extra virgin oil, so “product of Greece” is the legal minimum rather than a boast. A named region beats a country, and a name from the register beats both, because it is certified against a specification. Καλαμάτα / Kalamata is the register’s best-known Greek oil entry, and what that name does and does not guarantee is walked through in Kalamata olive oil.
• A harvest date, if the bottle is serious. GB rules allow a harvest year on the label only where 100% of the container’s contents come from that harvest, expressed as the marketing year or as the month and year of harvest. A Greek bottle that names its crop is making a precise, checkable claim; one without has chosen not to.
• Read the extraction wording precisely. “Cold extraction” is a regulated phrase — oil obtained below 27°C by percolation or centrifugation of the olive paste — and “first cold pressing” is reserved for oils from traditional hydraulic-press systems. A maximum-acidity figure — the indication of the acidity expected by the best-before date — is lawful only alongside the peroxide value, wax content and ultraviolet absorption expected on the same date, in lettering of the same size and in the same visual field.

The full walk across a bottle — mandatory wording, origin lines, the optional extras and what each is worth — is at how to read an olive oil label.

What is the best Greek olive oil?

Not a brand — this page names none, and a seller ranking oil is marking its own homework. The best Greek olive oil in the UK is the bottle that makes the most checkable statements: the extra virgin grade as a floor, a harvest date, an origin as narrow as an estate, a mill or a register name, dark glass or a tin, and the laboratory numbers published for the lot in the bottle. That standard, and why each check earns its place, is set out in full at best olive oil UK, and it applies to a Greek bottle without modification. Greece’s advantage is simply that its shelf gives the method more to work with: one dominant variety with a known character, a harvest calendar that starts in October, and thirty-two protected names any buyer can look up in a minute. Whether olive oil deserves its wider reputation is a research question rather than a shopping one, and we read it trial by trial in is olive oil good for you.

Where does THYMELIA stand?

THYMELIA is a UK house for Cretan thyme honey and bee products, and this page is the national map for a second world we are building the same way as the first: olive oil guides written from the register, the regulations and the primary literature before anything is sold. An extra virgin olive oil line is in preparation from the hill country above Kalamata, in the southern Peloponnese — and the honest position comes first: we have no shop, no stock and no bottled oil, so nothing on this page is a claim about oil of ours, and no oil of ours carries any name on the register above. When a bottle exists, its label will have to survive exactly the checks this guide teaches, and the per-batch record — the format is laid out at testing, waiting for a first real batch — will publish the numbers alongside it. How we choose what to put our name to is at sourcing, and what the research record shows about olive oil is read separately at evidence. Until there is a bottle, the honest work is the map itself — and the thirty-two names on the register stay with the growers who earned them.