Olive oil obtained by extraction from the pomace by means of solvents (i.e. extraction from the residual material left after oil mill processing, this pomace still containing a small portion of oil that cannot be extracted by mechanical means).
Pomace consists in the solid residues left after pressing the olives (skin, flesh and stone). Pomace still contains a certain amount of olive oil (quantities vary according to the extraction method adopted).
This oil, known as crude olive-pomace oil, is extracted using a solvent (usually hexane). The technology is the same as that adopted for production of seed oil. The solvent is then separated from the oil by distilling.