Does anyone know if rum goes bad? Internet sources have said no but I'd like to hear personal opinions. I ask because I found a dusty bottle of captain morgan's spiced rum and I have no idea how old it might be. Anywhere from 3-29 years old is my guess. The bottle is unopened. Assuming that it was 29 years old would it still be good if it's sealed? If so I've hit the jackpot.