Before Jim Beam Bourbon, the Beam family made Old Tub, an unfiltered bonded bourbon. Old Tub was the foundation for what would become the world's #1 bourbon. This limited edition bottle is a tribute to that groundbreaking whiskey.Jim Beam's Old Tub is a Bottled-In-Bond, Kentucky Straight Bourbon Whiskey. Just like the original Old Tub, it has not been carbon or chill filtered - only quality screened to remove bits of barrel wood. It's the next best thing to thieving the barrel yourself. You may notice some haziness when you add ice. Think of it as an indicator of the true, full flavor of this bourbon.