A unit (1) for dosing a confectionery mass includes a base body (2), a dosing chamber (26) for containing a confectionery mass and a rotary piston (3) being reversingly driven to alternatingly fill the dosing chamber (26) with confectionery mass and to remove confectionery mass from the dosing chamber (26). The rotary piston (3) has a filling cycle for filling the dosing chamber (26) with confectionery mass during which it is rotatingly driven in a first direction of rotation (28). The rotary piston (3) has a removing cycle for removing the confectionery mass from the dosing chamber (26) during which it is rotatingly driven in a second direction of rotation (29) being opposite to the first direction of rotation (28). The filling cycle and the removing cycle form one complete working cycle.
