The Calumet Farm 16 year old Single Rack Black Bourbon is a truly exceptional bourbon, housed in a vintage-designed bottle that offers just a glimpse of the masterfully aged liquid inside. Crafted from premium-sourced whiskey from the Barton 1792 distillery, this bourbon is aged for a minimum of 16 years in American white oak barrels, matured in a single center cut rack, and finished at a barrel strength of 106 proof. Made from a mash bill of 74% corn, 18% rye, and 8% malted barley, this limited edition bourbon was originally barreled in March 2006 and bottled in extremely small batches, totaling only 19 barrels.