Barrell Bourbon Grey Label Bourbon is a small batch, limited edition bourbon whiskey. It is made from a blend of three different bourbons, each aged for a minimum of 8 years. The blend is then finished in a variety of barrels, including sherry, port, and rum. The result is a complex and flavorful whiskey with notes of caramel, vanilla, oak, and spice. This bourbon is bottled at 90 proof and is best enjoyed neat or on the rocks.