Frank August 'Case Study: 04 Wood Proofed-Double Oak' Kentucky Straight Bourbon is the fourth release in the brand's acclaimed "CASE STUDY" series, which blends innovation with tradition to craft exceptional American whiskeys. This expression is a combination of double oaked Kentucky Straight Bourbon Whiskey (KSBW) and double oaked Kentucky Straight Rye Whiskey (KSRW), resulting in the distinctive "4X Oaked" profile. Each batch is proofed in the barrel to 95 proof during maturation, a unique process that adds depth and character to the whiskey. After an additional 12-14 months of aging in a second barrel, the final product is a rich, full-bodied expression that showcases Frank August's dedication to experimental whiskey craftsmanship.

On the nose, the whiskey reveals an intricate blend of sweet vanilla, baking spices, and the sharpness of rye, accented by the warmth of oak. As the aromas evolve, hints of brown sugar, dried fruits, and subtle leather notes emerge, enhancing the already complex bouquet. The palate is equally layered, with the initial burst of caramelized sugars and baked apple giving way to vibrant rye spices. Toasted almonds, buttery toffee, and clove add further depth, while the mid-palate introduces refreshing mint and mild pepper, which contribute to the complexity and balance of the experience.

At 95 proof, the finish is long, nuanced, and evolving, with lingering notes of mint chocolate, cinnamon, and dark roasted coffee. The spiced oak rounds out the experience, making every sip a journey of flavors that invite exploration with each pour. This bourbon is best enjoyed neat or with a splash of water to fully appreciate the layers of flavor that continue to develop.