There is good reason for the olive's elevated station in society. It is a source of lumber, food, fuel, and medicine as well as beauty. The fruits are highly prized, and an olive gourmet could tell you the virtues of a Picholine olive versus a Kalamata or a Nicoise. There are many different varieties, differing in size, acidity, and color, and the ripeness and curative method used also greatly affect the end product. Curing with water, brine, or lye takes weeks to transform these hard, tart fruits into a delicacy.
Olive oil is commercially the most versatile part of Olea .
It is still used as lamp oil in many regions. It has long been used as medicine. Olive oil, rubbed on the skin, can help with dryness. It is even used as a hair product and as massage oil. By far, the most celebrated use of olive oil is culinary.