Broken Barrel Whiskey Co. Double Barrel is a Blend of Straight Bourbon Whiskey Finished in Broken Barrel Staves. It’s Broken Barrel's first ever Double Barrel release, which takes the original Small Batch & Cask Strength Broken Barrel lineup, each already aged with French/Sherry/Ex-Bourbon barrel staves, and sees the whiskeys blended, and re-barreled for another 7-months in new Char #4 30 Gallon Barrels.