- Like wines, extra virgin olive oils can vary dramatically in taste, depending upon the type and quality of the fruit that is pressed, the time of harvest, the weather during the growing season, and the region from which the olives were produced.

- Connoisseurs generally use the following adjectives in appraising extra virgin olive oils: mild, semi-fruity and fruity, depending on the flavor of the olive that can be detected. Further, some oils, such as the finer oils from Tuscany and Southern Italy, have a peppery finish that many appreciate.

- Three things make olive oil superior to vegetable oils: taste, nutrition and integrity.

Taste is the most obvious difference between olive oil and the commercially popular vegetable oils such as corn, soybean and canola oils. These oils are tasteless fats. You would not want to eat a piece of bread dipped in vegetable oil; for the same basic reason, many chefs refrain from adding tasteless fat to the foods they prepare. When you cook with oil, get the most flavor and texture you can.

Olive oil, especially extra virgin olive oil, adds a flavor and textural dimension lacking in other oils, making it a suitable substitute for butter and margarine in almost any recipe. In fact, more and more restaurants are serving extra virgin olive oil, both plain or flavored with salt and pepper, as an alternative to butter for bread.

Nutritionally, olive oil contains more monounsaturated fat than any of the popular vegetable oils. For more information on the nutritional qualities of olive oil versus other oils and fats, please refer to the last chapter in this booklet.

Moreover, vegetable oils are industrial, processed foods. Vegetable oils are generally extracted by means of petroleum-based chemical solvents, and then must be highly refined to remove impurities. Along with the impurities, refining removes taste, color and nutrients.

Extra virgin olive oils are not processed or refined. It is said that you do not make extra virgin olive oil, you find it. Extra virgin olive oil is essentially “fresh squeezed” from the fruit of the olive tree, without alteration of the color, taste, and nutrients or vitamins. Because of the integrity of the product, and its antioxidant components, olive oil will keep longer than all other vegetable oils.

- Olive oil should be stored in a cool, dark place. Properly stored, olive oil can keep for at least two years. It is, however, at its peak within a year of production, and is its most flavorful for the first two months. Olive oil should not be stored in the refrigerator. If chilled, olive oil will become cloudy and eventually solidify or crystallize. Should this happen, the oil is perfectly fine; just leave the oil at room temperature for a time to restore it to its natural state.