Louisville area is known for good bourbon but also good beer. I found really outstanding beer on several trips and at several locations. If we count the 'metro area' including the 'sunny' side across the Ohio river in Indiana, there are four brewpubs. The largest of these is the Bluegrass Brewing Company. The others are Cumberland, Brownings, and NewAlbanian.
Bluegrass is well known for a wide variety of beers and for always having one on tap that is aged in a bourbon barrel. I had tried their bourbon barrel aged stout - Yum. This July I tried their bourbon barrel aged scotch ale -- double yum. 8.8% ABV (or % alcohol). 27 IBU for those like me who want to gage the bite or 'bitterness' in the beer. This is an absolutely delightfully complex beer with a nice malt characteristic as well as great tones of bourbon without that being overwhelming.
I also tried their Alt beer - a nice clean somewhat bitter beer with some malt character. I've tried several of their beers (thanks to assisant brewer Sam) and intend to blog more when I return to all of my notes.
But if you want a great beer adventure in Louisville, try BBC!
