The freezer enclosure is maintained at a temperature equal to or less than the freezing point of the beverage. Gears, rotatably mounted on a shelf, include sets of aligned interconnected gears and gears connecting the gears in the sets. A drive gear is mounted to and moveable with the shaft of a motor. The drive gear is connected to one of the gears in one of the sets to drive the gears in each set. A coaster-shaped member is moveable with the gears and supports a bottle which contains the beverage. The bottle is locked to the member such that it rotates with the member. The motor continuously rotates the bottle to agitate the beverage to keep the beverage from freezing. Internal baffles in the bottle increase the agitation resulting from the rotation.