In this bonus episode of Proof of Concept, hosts Toby Blue and Jason Rabinowitz pour their way through the Heaven Hill portfolio — one of the largest family-owned distilleries in America and a cornerstone of Kentucky whiskey. The lineup spans Henry McKenna, Elijah Craig, and Rittenhouse before taking a smooth left turn into Carolans Irish Cream. From bottled-in-bond bourbon to benchmark rye, this tasting digs into what nearly two centuries of distilling heritage tastes like in the glass. Whether you're a bourbon loyalist or just building your whiskey vocabulary, this one covers a lot of ground in a single sitting.