Filter holder

Filter holder having a dish (1) designed to be mounted on an "espresso" coffee machine capable of producing infusion by liquid under pressure and having a cup (2) whose bottom wall forms a filtering surface (3) and which is designed to receive a quantity of coffee, the fineness of whose grounds may vary, said dish also having a collection chamber for froth (4) provided between its bottom (10) and said filtering surface (3), and communicating via an exit passage (5) with distribution funnels (6) enabling the infusion to flow out of said dish (1), said cup (2) further comprising means for partially blocking the filtering surface (3) of the bottom wall of the cup (2), wherein the filtering surface (3) of the bottom wall of the cup (2) has perforated zones (7) and non-perforated zones (8), and the blocking means are formed by blocking areas (9) carried by bosses arranged in the bottom (10) of the dish (1) and situated at a distance from the bottom (10) at a certain level (A), said cup (2) having its bottom wall adjacent to the level (A) of said blocking areas and being mounted for rotation about a vertical axis (X-Y) so as to occupy different positions in the dish (1) corresponding to different degrees of covering of the perforated zones (7) by the blocking areas (9).