The goal of this experiment is to determine what effect natural light has on the aging of bourbon. This is a minimum two year experiment. The barrel breezeway will hold the control barrels, with chamber one operating at 0% light and the external temperature and humidity the same as the control barrels. Chamber two will be at 0% light and the control barrels' internal liquid temperature will be mimicked by experimental barrels in this room. Chamber three will be at 50% light and the external temperature and humidity will be the same as the control barrels. Chamber four will be at 100% light with the temperature and humidity constant.