The lady in boots top right is feeding 100 kg of olives into the machine. The machine on the far wall removes leaves and twigs, washes the olives, then removes the pips and mashes the flesh into a paste. The paste is pumped to the machine on the left that the guy is tending. Here the paste is heated to between 20 and 27C for an hour, so that the oil liquifies. The warm paste is then fed into a basket centrifuge, just behind the guy, where the water and solids are separated from the oil. The oil is fed to a small disc stack centrifuge (hidden by the control panel) that removes final impurities. 100kg olives produces typically 8 to 13 litres of oil. Here endeth today's lesson.
