Frank August Case Study 08 Winter Wheated Reserve Bourbon

Eight years in American oak, but this bourbon has been waiting its whole life for this moment. Frank August Case Study: 08 Winter Wheated Reserve is the eighth release in the acclaimed Case Study series — and the brand's second wheated bourbon — built on the legacy of Case Study: 05, which was named World's Best Wheated Bourbon at the 2025 San Francisco World Spirits Competition. For CS:08, the distilling team went back to those same lots, but narrowed their focus to barrels filled during winter distillation runs. That seasonal timing means each barrel carries an eight-year age statement while actually resting closer to nine years in oak, giving the whiskey extra time to develop depth and character.

The result is eight distinct batches, each one composed of eight hand-selected barrels, delivering the soft, balanced profile that made CS:05 a standout, now layered with the richness that comes from extra time in the barrel. Bottled at barrel strength (108.8 proof), every sip carries the full intensity of its winter-distilled origins. As with every release in the Case Study series, CS:08 is a true one-of-one expression — shaped by a singular selection of barrels that will never be replicated. Once it's gone, this particular story is over for good.