Within
24 hours of the harvest, the olives are milled In this
phase, the pulp and the stones are crushed energetically by granite grindstones,
obtaining a course consistency of mashed pulp and fragmented stones (mosto
oleoso) This mixture is then slowly remixed by
machines to separate the oil from the pulp and to allow for the drops of oil to
mix together thus becoming bigger and therefore easier to separate in the next
phase of pressing. For this reason, after the remixing, the
oil is quickly separated from the juice by centrifugation. From
this procedure, and after the separation from the vegetation water, the oil obtained
is almost completely pure. However, the olives are
not always ground from whole; sometimes if a particularly excellent oil
is to be made, the stones are removed from the drupe by a tool called the "snocciolatrice"
and only the pulpy part is then ground and pressed. After
the various phases explained above, the oil still contains various micro vegetable
residue (bits of pulp, peel etc) which are eliminated by letting the oil rest
for a few months in stainless steel tanks and then decanting it before it
is packaged. |