Backbone "The Forge" is blended bourbon where at least 51% or more of the blend is Straight Bourbon. We spent several months coming up with the blend. Our starting point was simple – how could we use our older barrels of whiskey to create something that was outstanding and stood apart from other high-end American whiskeys. The bulk of the blend is some of our best Straight Bourbon barrels between 5 & 7 years old. We also included some older Straight Rye and some wonderful barrels of Light Whiskey that were barreled in 2006. The right combination of these mature whiskeys including a stout proof of 110 allowed us to create a rich and decadent blend.