The Gradassi olive mills only uses the "Sinolea" mill which manages to obtain oil without any production stress. During the process no pressure, centrifugation or water is applied. The "Sinolea" contains a barrell in which the olive paste is poured. Here more than five thousand minute steel blads rapidly slice into the paste; as these are extracted small drops of oil drip off and are collected. Such method is the best extraction process in roder to obtain an extra virgin olive oil which bears the closest resemblance to the original olive fruit, guaranteeing the highest levels of natural antioxidants in the extra virgin olive oil.