How To Cook With Olive Oil:
Olive oil helps carry the flavor of foods and spices, provides a pleasing feel in the mouth, and satisfies the appetite. Liberal use of it will enhance both savory and sweet dishes without guilt because of its wonderful health-boosting properties (although if you’re trying to lose weight, you may not want to overdo it, because like all fats, it provides nine calories per gram).
Virgin and extra-virgin oils are best used uncooked or cooked at low to medium temperatures. Refined and olive oil grade oils are the choices for high-heat uses, such as frying.
An oil’s smoke point is the temperature at which it smokes when heated. Any oil is ruined at its smoke point and is no longer good for you. If you heat an oil to its smoke point, carefully discard it and start over. Olive oil has a higher smoke point than most other oils (about 400 degrees Fahrenheit). Refined olive oils have a slightly higher smoke point (about 410 degrees Fahrenheit).