Koroneiki olive: Greece's oil variety
The backbone of Greek olive oil. Very small fruit, very high polyphenol content, and one of the three super-high-density varieties.
Most of Greece's olive oil comes from a single variety: Koroneiki. Dominant across the groves of Crete and the Peloponnese, it also yields one of the highest-polyphenol oils in the world.
Small fruit, dense oil
Koroneiki's fruit is very small — with Arbequina, among the smallest-fruited commercial varieties anywhere. Its oil content is nonetheless high.
Small fruit means two things: more skin and stone surface per unit weight, hence denser phenolic content; and suitability for mechanical harvest. The second made Koroneiki one of the three super-high-density varieties (the others being Arbequina and Arbosana).
The character of the oil
Green, grassy, distinctly bitter and pungent, with cut grass, green almond and pepper notes commonly described. The combination of high oleic acid and high polyphenols delivers both oxidation resistance and long shelf life.
That composition makes Koroneiki the main source of high-phenolic oils carrying health claims. On what those compounds are: oleocanthal and polyphenols.
Compared with Türkiye
The pairing of small fruit and high oil brings Koroneiki close to Türkiye's Kilis Yağlık: 560 fruits per kilo at 31% oil. Both fall squarely in the "not for the table, purely for oil" class.
The difference is that Koroneiki has been adapted to modern planting systems. Kilis Yağlık remains in traditional groves; Koroneiki is being planted in new orchards worldwide.
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