Um, how could they tell?

Drinkers sue Anheuser-Busch for 'watering down' beer, over at the BBC.  Oh really?  And someone noticed, or did it require a custom order to ORTEC for instrumentation sensitive enough to discern this minor difference?

OK, I'll stow the smartassery and go pour myself another Jefferson Stout.  Yes, pour myself one at home.  It now comes in a bottle.  Tastes about like it does on tap, maybe not quite as rich, but perfectly acceptable.  Good job, Lazy Mag!