Shiner Bock and Fireman's #4 both have this weird aftertaste that I can't stand. Any idea what they both have in common so I can avoid it?
EDIT: It's almost a slimy taste (I know slimy is not a taste, but that's the best way I can describe it). I'm starting to associate it with most lagers. Also Mexican beer. I think it might be a Texas summer heat thing.