Olive Museum

Glossary of Olive Oil

A structured reference of key terminology related to olive oil production, sensory analysis, and Mediterranean heritage.

Production & Milling

Centrifugation

A mechanical separation process using centrifugal force to separate oil from water and solid olive matter.

Cold Extraction

Mechanical extraction of olive oil performed at temperatures below 27°C to preserve aroma, flavor, and nutritional compounds.

Malaxation

The slow churning of olive paste after crushing, allowing microscopic oil droplets to merge into larger droplets for efficient extraction.

Quality & Composition

Extra Virgin Olive Oil (EVOO)

The highest grade of olive oil, obtained solely by mechanical means, with free acidity below 0.8% and no sensory defects.

Polyphenols

Natural antioxidant compounds found in olive oil that contribute to bitterness, pungency, stability, and potential health benefits.

Sensory Analysis

Fruity

A positive sensory attribute describing fresh olive aromas reminiscent of green or ripe fruit.

Rancid

A sensory defect resulting from oxidation, producing stale or degraded aromas.

Culture & History

Amphora

Ancient ceramic vessel used for storing and transporting olive oil throughout classical Mediterranean civilizations.

Olea Europaea

The botanical name of the cultivated olive tree species native to the Mediterranean basin.