Method for extracting puree, or juice, from a food product of vegetable origin, said method comprising the steps of:
- feeding said food product of vegetable origin into a hollow body of a machine for extracting puree or juice through an inlet of said hollow body;
- extracting said food product of vegetable origin in a first extraction section—provided within said hollow body obtaining a first portion of said product and a second portion of said product, in said first extraction section being provided:
- a first sieve having a first plurality of holes;
- a first rotor coaxially positioned within said first sieve and having a first plurality of blades;
- a first driving group operatively connected to said first rotor by a first motor shaft and configured to cause said first rotor to rotate within said first sieve to apply a centrifugal force to the product to be treated in order to divide said product to be treated in said first portion of said product which passes through said first plurality of holes of said first sieve and in said second portion of said product, which, instead, does not pass through said first plurality of holes of said first sieve;
- discharging said first portion of said product through a first outlet of said hollow body;
- advancing of said second portion of said product along a direction axial to said hollow body up to reach a passage section positioned downstream of said first extraction section;
- feeding said second portion of said product along an axial direction into a second extraction section,
- the second extraction section being positioned downstream of said first extraction section and of said passage section, within said second extraction section being provided:
- a second sieve having a second plurality of holes;
- a second rotor coaxially positioned within said second sieve and having a second plurality of blades;
- a second driving group operatively connected to said second rotor by a second motor shaft and configured to cause said second rotor to rotate within said second sieve to apply a centrifugal force to the second portion of said product coming from said first extraction section, in such a way to divide said second portion of said product in a main product, which passes through said second plurality of holes of said second sieve and in a waste product, which, instead, does not pass through said second plurality of holes of said second sieve;
- extracting said second portion of said product in said second extraction section obtaining a main product and a waste product;
- discharging said main product through a second outlet;
- discharging said waste product through a third outlet;
- said method being characterized in that said first plurality of blades of said first rotor and said second plurality of blades of said second rotor are positioned at a predetermined distance (d) from each other less than 500 mm, in such a way that said second portion of said product is arranged to move in said second extraction section without being deteriorated and, at the same time, without damaging the machine.