A carbonated beverage apparatus includes a freezing cylinder for receiving a mixture, and a stirring pusher disposed inside the freezing cylinder for pushing and mixing the mixture from an inlet of the freezing cylinder to an outlet thereof in a spiral manner, wherein the mixture is removed from the inner wall of the freezing cylinder radially back into a center portion of the freezing cylinder by the stirring pusher.

A carbonated beverage apparatus includes a freezing cylinder for receiving a mixture, and a stirring pusher disposed inside the freezing cylinder for pushing and mixing the mixture from an inlet of the freezing cylinder to an outlet thereof in a spiral manner, wherein the mixture is removed from the inner wall of the freezing cylinder radially back into a center portion of the freezing cylinder by the stirring pusher.

A carbonated beverage apparatus includes a freezing cylinder for receiving a mixture, and a stirring pusher disposed inside the freezing cylinder for pushing and mixing the mixture from an inlet of the freezing cylinder to an outlet thereof in a spiral manner, wherein the mixture is removed from the inner wall of the freezing cylinder radially back into a center portion of the freezing cylinder by the stirring pusher.

Provided is an ultra-fine bubble generator capable of efficiently generating ultra-fine bubbles in fluid. The generator is a fluid activating device including: a shaft in a cylindrical columnar shape; a tubular body provided with a hollow part to accommodate the shaft with a predetermined interval between an inner peripheral surface of the hollow part and an outer peripheral surface of the shaft; and multiple blades that are provided between the outer peripheral surface of the shaft and an inner peripheral surface of the tubular body while forming a flow path extending spirally from one end of the tubular body toward another end of the tubular body, and that generate a turbulent flow in fluid flowing in the flow path, the tubular body having an inner peripheral surface provided with multiple ribs each composed of a ridge extending in an axial direction of the shaft.