A bottle teat of an elastic material includes a hollow suction nipple and a circumferential mounting edge for fixation to the bottle opening of a drinking bottle. A hollow transition zone is disposed between the mounting edge and suction nipple as well as at least one drinking slot oriented in the longitudinal direction of the suction nipple and extending from the outside up to the inside of the suction nipple in an outwardly bulged external end region of the suction nipple. The bottle teat further includes at least one ventilation valve with a valve slot which is extended from the outer wall of the transition zone up to the inner wall of the transition zone.
