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Mechanical extraction preserves fresh olive oil flavour

Cold pressing olives without heat or chemical solvents keeps acidity low

Extra virgin olive oil is obtained solely through mechanical pressing or centrifugation of fresh olives at temperatures below twenty-seven degrees Celsius. Cold extraction prevents thermal degradation of volatile aromatic compounds and antioxidants like polyphenols. To qualify as extra virgin, the oil must possess free acidity under 0.8 percent.

Hiller's apparatus for the extraction of strontium - Date of Publishing 1897 - British Library
The British Library ยท Public domain ยท source

Where this comes from

Food and Agriculture Organization

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Tags: olive oil, pressing, oils

Mechanical extraction preserves fresh olive oil flavour: the short answers

Where does this come from, and can I check it?
Cold pressing olives without heat or chemical solvents keeps acidity low. The figure is taken from Food and Agriculture Organization, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
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