While not labeled bourbon, most Tennessee whiskeys meet the criteria required to be called bourbon. After distillation, Jack Daniel’s Tennessee Whiskey undergoes what is referred to as the Lincoln County Process. In the case of Jack Daniel’s, it drips for six days in 10 foot vats, passing through charcoal that was made by burning maple wood that had been impregnated with 140 proof Jack Daniel’s whiskey before being put in new charred oak barrels and aged for an estimated 4-7 years.
Jack Daniel’s pulls barrels from the upper levels of the rickhouse for their single barrel bottlings, with the barrel proof version being released in varying proofs ranging from 125 to 140. This is the first time that Jack Daniel’s has offered their single barrel product to the public in barrel strength form.