A kitchen appliance includes a rotatable filter element (30) having a closed bottomed with a grating disc (34). The filter element has an outer perimeter and a conical perforated wall (33) that extends from the outer perimeter to an upper edge defining an open upper part of the filter element. The kitchen appliance includes a drive motor for driving the filter element and a feeding tube (10) having a tubular wall extending from a first open distal end for receiving foodstuff to a second open distal end that opens near the grating disc. A cover member (60) extends from the upper edge of the perforated wall up to the tubular wall of the feeding tube (10). The cover member (60), the filter element (30) and the tubular wall define a substantially closed ring-shaped space.
