Pure Kentucky XO is a Kentucky Straight Bourbon Whiskey produced under the umbrella of Willett Distillery, located in Bardstown, Kentucky — the heart of America's bourbon country. Willett is a family-run operation with deep roots in the region, and Pure Kentucky XO is one of several labels in their portfolio, alongside Kentucky Vintage and Johnny Drum. The brand is closely associated with Even Kulsveen and the Willett family legacy of sourcing and bottling fine Kentucky bourbon. Pure Kentucky XO is bottled at cask strength (53.5% ABV) and is known for its bold, spicy, and vibrant character. The mash bill leans heavily toward a low-rye recipe — approximately 85% low-rye grain — resulting in a sweeter profile compared to other Willett expressions such as Johnny Drum. Tasting notes often highlight rich oak, cinnamon, and warming spice, making it a distinctive and full-flavored bourbon. It is available in 70cl bottles and has earned a strong reputation among bourbon enthusiasts for its intensity and complexity. Pure Kentucky XO has been described as "the Gemini of Bourbons" — vibrant, bold, and multifaceted. It holds a 4.5-star rating on The Whisky Exchange and continues to attract attention from bourbon fans who appreciate its straightforward yet characterful style.