Maker’s Mark Wood Finishing Series RC6 starts as the core maker’s Mark Straight Bourbon Spirit aged the normal way. The barrels are first emptied and opened up. Then ten special insert staves are placed inside the casks. Maker’s Marked worked hand-in-hand with the Independent Stave Company to create these special barrel inserts — staves that have been air-seasoned for eighteen months and then toasted. The experimental staves are version RC6, giving the Bourbon its name. The barrels are then refitted and filled back up for finishing. This limited edition Straight Bourbon is comprised of just 255 barrels at 54.1% ABV. Demand is high, so get yours while you can!