If you have tried the PB&J Mixtape sour by Xul Beer Company, consider yourself lucky. This beer doesn't last long in kegs around town and has led to long lines of people waiting outside the brewery just to get their hands on a four pack. 

Perhaps, it's the fact this beer taste exactly like a PB&J sandwich, crust and all. Maybe the funky labels and lack of gluten have something to do with it. Regardless, it's rare to see a single beverage take over a city to this level.

Host Ryan Wilusz is joined this week by Bentley Blackshear, co-owner and director of brewing operations at Xul, to discuss what makes the PB&J Mixtape so special and to let listeners know how they can get their hands on the beer this holiday season. 

"The Scruffy Stuff" is presented by Knox News. Want more downtown analysis? Sign up for the free weekly Urban Knoxville newsletter by clicking here, and join the downtown discussion by becoming part of the Urban Knoxville group on Facebook.