For many whiskey lovers, there’s nothing better than the taste of bourbon straight from the barrel: unfiltered and uncut, and as close to untouched as you can get at retail. While 80 proof (40% ABV) is the lowest legally allowed alcohol level for bourbon, and many releases are less than 100 proof, barrel-proof or cask-strength bourbon is typically in the range of 110 proof and higher. Some bottles, like certain bottlings of George T. Stagg, even soar above so-called hazmat levels—140 proof, which legally can’t be brought on an airplane (even in your checked luggage).
Many of the top barrel...
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