December MN Beer of the Month

For December, our MN Beer of the Month selections are from Lake Superior Brewing Company:

I was told, by the guy at the register, that Old Man Winter Warmer is unique, as a beer, in that it improves with age.  You can keep in in your fridge for a few years, letting it "age".   Hmmm.  I only bought a 6 pack so, that's probably not gonna happen but...I'm curious.