From the outside, the brewery looks like it used to be a CompUSA. On the inside, it’s a cavernous space to gather. On Saturdays, the taproom opens at 2 pm for the tours; 5 pm for those who just want to hang out and drink some brews. Here’s the best way to do this: buy tickets online in advance. It is five bucks cheaper. For those deeply interested in what goes on inside those big, shiny silver vessels, arrive a little before 3 pm. That’s when the first tour actually takes place.