Abstract: A threaded bottle stopper for controlling the release of pressurized gases from a bottle is disclosed. The threaded bottle stopper is used in conjunction with an externally threaded bottle neck and comprises a cap having an internally threaded annular skirt depending downwardly therefrom and a tubular body portion extending downwardly from and integral with the underside of the cap. The outside diameter of the tubular body portion is such to permit insertion thereof within a neck bore of a bottle. The continuous thread on the annular skirt engages a continuous thread on the neck of the bottle where rotation of the threaded stopper in both directions moves the tubular body portion respectively into and out of the neck bore of the bottle. The bottle stopper is provided with means for sealing the discharge opening of the bottle neck.