The new Calumet Farm 15 Year is an unusual release from this upstart, Kentucky-based brand. Both the highest proof and highest age for the brand to date, this is great old Kentucky Bourbon bottled without chill filtration. The "Single Rack" is a reference to source of the batch being from a single rack in the rickhouse, meaning all barrels were aged in the same center part of the warehouse, which lends to longer aging as compared to the top floors. Calumet Farm is the most famous horse farm in Kentucky (having bred and trained two Triple Crown winners and eight Derby winners), and their pedigree has allowed them access that few others have. Distilled and aged in Bardstown entirely in 2006, only 19 barrels were used in the production of this batch. At the time, only one distillery was operating in the area, so we can assume this is good Barton juice. The mash bill is 74% corn, 18% rye, and 8% malted barley.