A filter medium for the filtration of olive oil, in particular for the filtration of extra virgin olive oil, and the filtration process of the olive oil, in particular of the filtration of the extra virgin olive oil

5) An industrial process of filtration of virgin olive oil, in particular the filtration of extra virgin olive oil, characterized by the fact to comprise a succession of steps that consist in:

• filling the filter of the machine by filtration with the oil to be filtered,
• loading the filter with about 100 kg of filter medium to filter a quantity of olive oil included between 600 and 1300 tons, depending on the origin and quality of the oil (for example the high presence of waxes in the oil increases the amount of filter medium demand especially in winter months), to form the pre-filtration oil cake,
• keeping the oil in a substantially constant agitation, until the end of filtration,
• keeping the oil at a pressure higher than atmospheric pressure (i.e. “in pressure”), and
• ejecting the exhausted panel of filtration, this exhausted panel of filtration is the final result of the procedure, together with the filtered oil.