Masthead Brewing Single Origin Coffee Stout is a Coffee Stout by style. We partnered with our friends at Six Shooter Coffee to bring you this mash-up of our two favorite beverages. The lightly roasted Ethiopian Yirgacheffe coffee beans used in this beer bring flavors and aromas of berry and cocoa that pair perfectly with the roasty notes from the stout. This craft beer is 6.9% ABV and 30 IBUs. In this review, we will take a look at the color, smell, and taste.