Each and every barrel of Garrison Brothers’ Single Barrel Bourbon has been tasted and deemed worthy of the Single Barrel program by Master Distiller Donnis Todd. Barrels selected for the program are a minimum of three years old and are chosen specifically for their superior and unique flavor profiles. Each Single Barrel is an individual — no two barrels are exactly alike! While one barrel may be complex and sweet, the barrel next to it could be robust with more spice. Garrison Brothers' Single Barrels are the truest expression of handcrafted, authentic bourbon. Garrison Brothers Bourbon Single Barrel Select Cask Strength is created by bottling their Single Barrel Bourbon directly from the barrel, at cask strength.