The Boston Beer Company in Boston, Cincinnati or Breinigsville, Pennsylvania. As a member of their winter pack for a while, I've reviewed this beer before. The label is the same. Maybe even the notch on May is the same considering they dropped their year markings.
Malty, roasted cocoa aroma with a touch of nuttiness. Roasted chocolate continues into the flavor profile. Even a faintly burnt malty profile sticks out. Coffee flavors show through and again the nutty nuances are available for comment.
Some hoppy, citric, rindy bitterness then adds quite a bit of zing toward the back end of each sip. It's a little uncomfortable and sharp, especially as it's delivered with some rough and aggressive carbonation. That carbonation is prickly and makes each sip harder to swallow. Good body. Not terrible but certainly not great. And you gotta admire Sam's mixed 12 pack strategy--I guess they figure if you only get two of a particular beer you don't like, you won't complain and someone will drink them. Repeat each year. The 5.8% alcohol wasn't really noticeable. The End. Merry Christmas!