Abstract: A champagne bottle safety device having a bottle, a cork received within an open end of the bottle, and an elastic sheath extending over an exterior of the cork and extending around a portion of the bottle below the cork. The bottle has pressurized contents, such as champagne. The cork is received within the open end so as to contain the pressurized contents. The cork has a neck portion slidably and removably received within the open end of the bottle and a head portion extending outwardly of the open end. The elastic sheath covers the head portion. A foam insert is affixed to a top surface of the head portion. The elastic sheath extends over the foam insert. The elastic sheath has a closed end and an open end. The open end extends around a circumference of the bottle. The open end extends in air-tight relationship around this circumference of the bottle.