A plug is provided. The plug includes a body portion made of a foam material. The body portion has the shape of an upside down cone having a top end and a bottom end. At least a first internal tube is formed through the body portion along a longitudinal axis from the top end to the bottom end. The bottom end of the body portion wedges within an opening of a bottle and therefore seals the bottle. A tubing may run through the internal tube of the plug and into the bottle.