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Home / Reference /  Deciphering Olive Oil Terms

Deciphering Olive Oil Terms

Extra Virgin


Extra Virgin Olive Oil is the highest quality. It is always cold-pressed which means that the olives did not lie around indefinitely and processed naturally, without any heat applied. Supermarket grade live oils may include olives that have dropped onto the ground.

Acidity


The acidity level is never higher than 0.75% (3/4 gram fatty acid per 100 grams of oil). This refers to the proportion of oleic acid, a monounsaturated fatty acid in the oil. The lower the acidity, the finer the oil -- up to a point. The difference between .02% and .03%, for example, is indistinguishable, so the reason the percentage of acidity is listed is motivated purely by marketing.

'Pure' olive oil


'Pure' oil is refined from olives of high acidity, perhaps because they dropped from the tree and burst open on the ground, or stored too long before pressing. All the impurities are removed chemically-- along with its flavor. They then add some extra virgin oil to give it some taste. This cheaper oil is only suitable for frying.

First cold pressed


'First cold pressed' on the label means that it is 100% extra virgin olive oil, not processed or pasteurized. All extra virgin olive oil is first cold pressed.

Unfiltered


'Unfiltered' means that filtering of the olive oil is held to a minimum. Minute particles of olive will remain thereby enhancing the flavor of the oil. After a time they may settle to the bottom of the bottle. Of course, all olive oil is filtered to some extent to remove unwanted residue such as leaf fragments.

Light olive oil


'Light' olive oil is code for an oil that is a blend of refined olive oils with very little flavor and few of the benefits of real extra virgin olive oil.

Wild olive oil


'Wild' oil is produced by trees, often hundreds of years old, which over the years have gone out of production. People are now returning to these historic groves to pick these organic, all natural olives.

D.O. or Denominación de Origin


'D.O.' followed by the name of a town or region, appears on the labels of some unique olive oils such as Señorío de Vizcántar, D.O. Priego de Córdoba or Unió, D.O. Siurana. This is an official government controlled designation to assure you that the product is authentic: the raw olives have to be grown within a specific geographical area; the distinctive qualities and characteristics are due mainly to the natural environment; and the manufacture of the product follows strict guidelines.

France has a similar system which assures you that a bottle of wine designated 'Chateau Yquem' is really from the village of Yquem; or that Roquefort cheese comes from that area and the cheese is formed in the traditional way; or that Champagne is really made in the region of France that originated this kind of wine.

There are many excellent olive oils that are not designated 'D.O'. This is because they draw their olives from diverse areas, rather than being grown in one region.

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