The process of making live oil is long and meticulous. The first phase is the harvesting, the olives are picked every day and deposited in layers of no deeper than 10/12 cm. The olives must not be subjected to pressure as this could damage the quality of the oil (it could become acidic or have other organic problems which would make it inedible.)
The olives are transported in hard boxes which have holes to allow air through. The olives are washed in special machines that separate all other material such as sand, twigs, leaves etc.
The olives are transported to the olive-press by conveyer belts and there the olives are crushed obtaining a thick paste. The paste is then mixed in order to separate its three components; oil, sansa and water. The extraction occurs by hydraulic presses. The oil obtained from the paste is still not ready to be bottled as residue and remaining water must be removed. In olden days oil was decanted three or four times to obtain a pure oil, today this is done in a spinning separator and therefore can be decanted once to obtain a pure oil.
Thorough checks occur during the process of fermentation and conservation of the olives to check that it is being done correctly; by checking the percentage of salt in the brine, the PH and the acidity. These checks occur twice a week in order to improve the quality and to avoid any alterations. The olives are also checked by handling and tasting. The oil is meticulously tested using the latest state of the art methods to determine among other things its acidity. Finally to determine the exact quality of the oil that will be bottled, the oil is put before an in-company panel for a tasting quality evaluation.
The olive oil is preserved in airtight, stainless steel silos. The oil can be kept for 12 to 18 months in these containers but it must be protected from sunlight, air and high temperatures to avoid it becoming rancid.
The bottling of the olive oil is preceded by a filtration. Copar uses glass or airtight aluminium containers that have been previously treated with anti-oxidants .At the end of this process some bottles are subjected to chemical tests to guarantee that the product is sound, genuine and of the highest quality.