5. Through the drinking glass
The shaker pint is your archetypical beer drinking vessel: straight sides, slightly wider on top than the bottom. It became popular mainly because it's cheap and easily stackable, but if you walk into a beer bar and that's the only glassware they have, it's a red flag. The shaker pint is far inferior to stemmed glasses at trapping aromas, maintaining a foamy head, and some even say keeping the beer cool. Both our beer gurus made it clear that you don't need a unique glass for every beer, but it's a bad sign if there's nothing but shakers.
6. Portion-to-price balance
The size of the pour should vary inversely with the ABV of the beer. It's not necessary to be too precise with this, but if a bar is serving a 4% beer in an 8oz glass, you know they're paying more attention to the bottom line than the ABV.