Anyone have this issue before? I conditioned/lagered my beer in a glass carboy not realizing the airlock was plugged up. It lagered for a couple of months then the other day I kegged it. Needless to say it was a difficult transfer because it was highly carbonated due to the fact the CO2 had not been escaping. But the taste and smell were horrible. I don't know how to describe it. I thought it smelled like sulfur, my wife said rotten veggies. Notwithstanding the possibility of infection, what off flavors would be associated with this kind of error and is it fixable by letting it lager more but this time allow the CO2 to escape?