When I first started brewing i of course started with extract brews. One of the things i noticed was this consistent flavor that existed from brew to brew. It's hard to describe but I when I moved to all grain the flavor wasn't present in those brews. I recently helped a friend start brewing and his first brew was an extract brew and lo and behold there it was again that "extract" flavor! Anyone know what the hell that flavor is and how to eliminate it from extract brews?