Ancient (Roman) Olive Press

Ancient Roman olive presses were a groundbreaking invention that significantly enhanced olive oil production—one of the cornerstones of the economy at the time. These oil mills consisted of a stone mill and a press, which came in various types. What they all had in common was their ability to efficiently and rapidly extract oil from olives, transforming olive pressing into an early industrial process and setting a standard in production.

After the olives were crushed in the stone mill, the resulting olive paste was placed in thin layers inside woven baskets called frails. These were stacked on top of each other between the pressing surfaces. The stone mill was typically operated by slaves, who pushed or rotated a handle to lower the horizontal axis of the press, applying pressure to the stacked frails. The olive oil was then squeezed from the paste and collected in a stone basin positioned in front of the press.

Ancient Roman olive presses were not only practical but also symbolized the significance of olive cultivation in Roman society. Olive oil was essential for nutrition, medicine, lighting, and cosmetics production.