Founders KBS is a Double Coffee Stout by style. This beer taught us that patience truly is a virtue. KBS is a big imperial stout brewed with a massive amount of coffee and chocolate and then bourbon barrel-aged to perfection. Incredibly silky and full-bodied with notes of vanilla, cocoa, roasted coffee and charred oak. This beer is 12% ABV and 70 IBUs. In this beer review, we will look at the color, smell, and taste.