The Trash Compactor Debate turns on whether the Death Star ejects its trash into space. I, for one, believe it does. Though we never see the Death Star ejecting its trash, we do see another Empire ship, the so-called Star Destroyer, ejecting its trash into space. I therefore see no reason to suspect that Empire protocol dictating that trash be ejected into space would not apply equally to all Empire spacecraft, including the Death Star.On the Implausibility of the Death Star's Trash Compactor
The Death Star clearly has a garbage-disposal problem. Given its size and massive personnel, the amount of waste it generates — discarded food, broken equipment, excrement, and the like — boggles the imagination. That said, I just cannot fathom how an organization as ruthless and efficiently-run as the Empire would have signed off on such a dangerous, unsanitary, and shoddy garbage-disposal system as the one depicted in the movie.