Abstract: An actuating device for opening and closing a whistling cap of a whistling kettle, wherein the whistling cap is rotatably mounted on the spout by means of a first pivot, comprising an actuating rod which is rotatably mounted on the whistling cap by means of a second pivot, and a spring for continuously biasing the cap into a closed position. The actuating rod has a longitudinal axis which extends in a direction at an obtuse angle .theta. with respect to a line connecting the first and second pivots in the closed position of the whistling cap. The actuating rod can move into a locked position past a dead point at which the longitudinal axis of the rod and the first and second pivots are aligned on a same line when the rod is moved to open the whistling cap.

Abstract: A cooking vessel having an inner container for containing a cooking material and an outer container for receiving the inner container with a circumferential space therebetween. The inner container is provided, on its bottom and side circumference with a large number of holes for connecting the inside areas of the inner and outer containers. The inner container also has openings for ejecting into the inner container foams produced when the cooking material is boiled.