How Spain Makes Its Oil
Spain makes roughly 40% of the world’s olive oil. Behind that staggering number is a modern, fast, industrial-scale machine — and, alongside it, the old traditional groves it’s slowly replacing.
From grove to mill in hours
The modern Spanish playbook is speed and freshness. Olives are harvested early (greener fruit, better oil) and rushed to the mill within hours. There they’re washed, crushed to a paste, gently churned (malaxed), then spun in a centrifuge that separates oil from water and solids — no heat, no pressing mats. It’s clean, controlled, and built for quality at volume.
Co-ops, estates and the hedgerow
Much of Spain’s oil flows through cooperatives — thousands of small growers pooling fruit at a shared mill. Alongside them, premium estates bottle their own, and vast super-high-density hedgerow groves let machines harvest Arbequina like a vineyard. It’s three olive worlds at once: traditional, estate and industrial, all under one flag.
This machinery is why Spain, and especially Jaén, can move the global price single-handedly. When its mills run full, oil is cheap worldwide; when drought empties them, everyone pays. Understanding how Spain makes oil is most of understanding the whole market.
Part of the olives101 country guides.