It is an original and innovative crushing system consisting of sequential knives breaking elements, with vertical rotation axis. Since the axis of rotation of the breaking elements is vertical, it guarantees a correct 360° crushing through the holes in the grid, and ensures that the paste comes out naturally from the holes of the grid itself without any constipation, thus eliminating the effect of a possible heating of the paste generated by other pressing systems. The crusher is also equipped with an innovative washing system consisting of rotating blades equipped with sprayers for instant and / or continuous washing of the grid-knives group and of the paste collection chamber. The latter also feeds the mono-screw transfer pump below the group. Completely made of stainless steel, the sequential knife crusher guarantees high production capacities without significantly impacting processing temperatures.