The archaeological remains of clay have made it possible to determine the origin of the clay, the foodstuffs that were transported and even the type of olive oil that was consumed at the time. Valuable conclusions have been drawn about which period the most oil was consumed, depending on the customs of the population or the size of the population.
Extra virgin olive oil is a fundamental ingredient in Mediterranean gastronomy and its importance dates back to ancient times, even before the Roman Empire. The ancient Greeks, Egyptians and Phoenicians already cultivated and consumed olives and olive oil, considering it a sacred food of great nutritional and medicinal value. They also used it in religious ceremonies and as a symbol of prosperity and wealth. In Roman times, olive oil production and trade became an important economic activity, spreading throughout the Mediterranean basin. The Romans used advanced production and storage techniques and built infrastructures such as roads and ports to facilitate transport and trade.
In the Middle Ages, olive oil remained a staple food in the Mediterranean diet and its use extended to medicine, cosmetics and lighting. Today, extra virgin olive oil remains an essential ingredient in the gastronomy and culture of Mediterranean countries, as well as in the Mediterranean diet, recognised for its high nutritional value and health benefits. Moreover, olive oil is also an important export product for many Mediterranean countries, such as Spain (mainly), Italy, Greece and Tunisia, among others.