OLIVE OIL

   Ingredient Insight from the BigOven Food Dictionary

Olive oil is widely recognized for its flavor and heart-healthy qualities. The type of processing will greatly affect flavor and price.
See also extra virgin olive oil.

Olive oil is high on the list of essential cooking aids with its heart-healthy, cholesterol-lowering monounsaturated fats. Only green olives are harvested for the production of oil. The greatest production is in Spain (50%) followed by Italy, Greece, France, Turkey, the U.S. (mainly California), and Tunisia.

Varieties

Olive oils are graded according to the extraction method, which influences the flavor and clarity. The highest quality oils will undergo a single pressing while those that are of lesser quality will become more “refined” through heat or chemical extraction plus bleaching and other treatment. Calories and fats are the same regardless of which oil is selected.

The oil is then classified as “virgin” (unrefined), “refined” (chemicals are used), or “pomace” (rarely sold as a consumable). Cold pressing produces the finest quality oils while heat-presseding induces a reaction that alters the original flavoring. Further refinement will also affect the color.

Extra-Virgin – Resulting from the first, cold pressing. The highest grade with an acidity level of less than 1%. May also be called “premium.” Heating will greatly reduce the intensity and it is best used at the table.

Virgin – The oil is extracted from riper olives and has an acidity level of less than 2%. Label may also state “fine” or “semi-fine.” Can be used for salads, dipping, and baking, but should not be exposed to high temperatures.

Light or Extra Light – The most refined and least aromatic. Sometimes labeled “light” or “extra light.” These may be blends of low-grade olives plus a hint of virgin oils for acceptable flavor. Best used in baking, frying, and sautéing as this type has a higher smoke point (up to 410ºF./210ºC. This grade is sometimes infused with garlic, chili, basil, and rosemary to improve flavor. 

Buying Tips

Oils are much like wines when comparing flavor, color, and consistency. They vary according to the type of olive, country of origin, and specific growing location. Many olive species may be combined to create oils

Labeling can be deceptive. The statement “imported from” could merely indicate the location of bottling and not the origination of the olives. “Refined” means chemicals were used to produce the oil and “100% Pure Olive Oil” is the lowest quality. 

Storage Tips

Protect from heat and light. When refrigerated, white flakes develop and the oil can become cloudy. These will disappear at room temperature. In the U.S., there is no requirement to include an expiration date, but oil should retain its good flavor for about twelve months. To prevent rancidity, always keep the bottle tightly capped.  

Usage Tips

Brush premium oils on foods just before serving.

Regardless of grade, all olive oil contains 120 calories per tablespoon.

Olive oils can influence the taste of baked goods; use with caution.

If a high quality oil seems too strong, let it rest for a few weeks and the taste will diminish somewhat.

Substitution Tips

Peanut oil (for frying).

Canola, hazelnut, almond oil (still healthful).

 

 

 


Try one of our favorite olive oil recipes:

Basil Pasta
Marinated Feta

Mediterranean Couscous


 

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