Ingredients
Olive Oil - Choices
There are whole books written on how to choose olive oil.
The Italian Culinary Institute has a course on tasting olive oils that is
modeled on wine tasting. You can even join an Olive Oil of the Month club.
Oil is pressed in most temperate countries, but those
around the Mediterranean Sea dominate with over 90% of production. There is
great variety in olive oils based primarily on the climate where the olives are
grown. Much of the oil imported to the U.S. comes from Italy, so I will use it
as an example of how the differences in climate can affect the pressed oil.
Tuscan olive oils have been the gold standard for Italian
olive oils. Because of the cooler northern climates, olives are picked before
they are ripe, giving them a younger, herbaceous flavor. It is, however, the
slight pepper undertone that is most characteristic of these oils.
In the south of Italy, the longer season offers an olive
that can be fully ripened and is less bright and green in flavor.
Traditionally, the growers in the south sold olives that were overripe and were
made into lesser quality olive oils.
Sicily produces excellent quality olive oils. Many of
these are grown, pressed and bottled in Tuscan style, but the southern oils are
generally softer in their flavor with mellow buttery characteristics.
The Greeks have almost 20% of Mediterranean olive oil
production. Spain is the largest producer of oil at almost 30% of total world
production.