In 1964, Congress declared bourbon the only native spirit of the United States. But in the past decade, the bourbon industry has exploded. While distillers have done their best to keep up with demand and keep the release calendar full, it's become more difficult to make sense of what's worth drinking. We've sampled bourbons new and old, from every brand in Kentucky, along with the craft upstarts from outside the Bluegrass state. We've visited every distillery, chosen single barrels, and spoken with several Master Distillers — from the industry's senior statesman Jimmy Russell to more recently elevated blending guru Brent Elliot at Four Roses. And now, we're finally ready to recommend the best bourbons in existence.