Hey guys and gals I got a used keg that came from China. It sat around for a while because I did not need it. The other day I decided to clean it up and use it. When I opened it whatever was in it smelled like turpentine or maybe pine cleaner? All in all it was fairly clean inside and there was some slimy sludge growth in there so I assume that whatever was in the keg was of organic nature. Anyone have an idea of what this substance may have been?