Nelson's Green Brier Tennessee Whiskey is a brand that originated in 1860 and flourished until Prohibition shuttered its doors in 1909. The brand was resurrected the great grandsons of its founder. Notably, the original recipe for the whiskey used a mash bill of corn, wheat, and malted barley. After distillation, the whiskey is charcoal filtered and then barreled in 53-gallon new, charred American oak. It's bottled at 45.5% ABV after aging for 2-5 years.