Food processor including potato peeling disc system and method

A food processor comprising:

• a food preparation vessel;
• a heating element and a mixing or chopping tool for preparing a food in the food preparation vessel;
• and
• a potato peeling disc having a central opening formed by an inner contour of the potato peeling disc, wherein a surface of the potato peeling disc comprises a plurality of teeth having an orientation such that potatoes are peeled by the teeth by rotating the potato peeling disc in a first direction of rotation about a central axis which is coaxial with the central opening, wherein the potato peeling disc is configured to be manually releasably attached to the mixing or chopping tool,
• wherein the inner contour forms, by means of a U-shaped cut-out, a latch arm extending parallel to the central axis, wherein the latch arm includes a latching lug projecting radially in the direction of the central axis, such that during installation the latching lug grinds along a rotationally symmetrical body with an outer diameter of exactly 17 mm in the direction of the central axis, and wherein the rotationally symmetrical body defines a recess and during installation the latching lug is configured to engage in the recess.