A bottle sealing device for reversibly sealing a bottle includes a tube that is hollow. The tube is configured to insert a neck of a bottle such that the tube is reversibly couplable to the bottle with a threaded section of the bottle protruding through an upper end of the tube. A cap is pivotally coupled to the upper end of the tube. The cap also is reversibly couplable to the upper end of the tube. The cap is substantially complementary to the threaded section of the bottle. The cap is configured to reversibly and sealably couple to a lip of the bottle as the cap is reversibly coupled to the tube.