1. The invention relates to a single-screw extruder and a method for producing a plasticized food product using the single-screw extruder. 2.1 A single-screw extruder is known, comprising a screw, comprising an extruder cylinder which receives the screw and which comprises an inlet region and an outlet region on the outlet side, and comprising at least one temperature-controlling device which is associated with at least one sub-portion of the extruder cylinder in order to heat or cool a corresponding cylinder space. 2.2 According to the invention, the geometry of the screw is designed such that the starting material is conveyed in the plasticized state through the extruder cylinder to the outlet region under an at least largely constant pressure, and the extruder cylinder is provided with grooves at least largely over the entire length of the cylinder, said grooves running in the shape of a spiral along the inner casing surface of the cylinder, wherein the spirals of the grooves run opposite the rotational direction of the screw in particular. 2.3 The invention also relates to a use of the single-screw extruder for producing mozzarella.
