Each bottle is carefully proofed down to 100 proof (50% ABV), preserving the distinctive character of Old Forester's time-honored mash bill of 72% corn, 18% rye, and 10% malted barley. These selections have become increasingly sought-after since their 2020 introduction, as most barrel picks opt for barrel strength, making these proofed versions a true collector's find. The higher rye content in the mash bill delivers a more pronounced spice profile compared to their standard offerings while maintaining the brand's signature rich character.