The 2018 release of Old Forester Birthday Bourbon marks the 18th release of the series. Its 101 proof is the series’ highest proof to date. The 2018 edition is comprised of 120 barrels, which according to Brown-Forman consists of 93 barrels matured together on the 3rd floor, on the Northwest side of Warehouse J. The remaining 27 barrels matured together on the 3rd floor, on the Northwest side of Warehouse I.
This year’s bottling had an unusually low yield of just 39%, and 5 barrels were actually found to be empty, resulting in 14,400 bottles being released. This is also the first time the series was bottled at the the new Old Forester Distilling Co., located in downtown Louisville.