Overview: Pursuit Spirits co-founder Kenny Coleman clarifies the distinction between full proof and barrel proof whiskey for Southern Living. The brand’s recent accolades include Double Platinum honors at the 2026 ASCOT Awards and recognition as North America’s Leading Bourbon Distillery Tour at the 2026 World Travel Awards.
The Full Story
Whether new to whiskey or a seasoned enthusiast, consumers often encounter varying labels regarding proof strength. Kenny Coleman, co-founder and COO of Pursuit Spirits, explains that the primary difference lies in the specific proof at which the spirit is bottled. Barrel proof is typically considered whiskey coming directly from the barrel with no water added whatsoever. Since it is not diluted in any way, barrel proof whiskey tends to be higher proof, one of the main reasons whiskey aficionados chase after it.
Full proof generally refers to whiskey bottled at its original barrel entry proof. Coleman claims this means the whiskey has been proofed down to that level for bottling. For instance, bourbon enters the barrel at 120 proof. After maturation, the bourbon may have risen to 133 proof. Water is then added to achieve the 120 proof point, hence “full proof.” Coleman also notes that there is technically no law that defines either term, although the U.S. federal regulations define barrel proof through the Alcohol and Tobacco Tax and Trade Bureau. The term full proof, however, is not legally defined, so it is up to the producer’s interpretation.
Production & Profile
Barrel entry proof is the whiskey’s strength when it goes into the barrel for aging. By law, bourbon cannot come off the still at more than 160 proof and cannot enter the barrel at more than 125 proof. If the whiskey is made at 150 proof, water must be added to cut the whiskey down to 125 proof or below, so it can legally be called bourbon. The entry proof doesn’t necessarily match the number seen on the finished bottle. Proof can change during aging, and producers may add water before bottling to reach their desired strength.
A whiskey’s proof can rise or fall during aging, depending on the relative amounts of water and alcohol lost through evaporation. A barrel isn’t a sealed object, so water and alcohol both slowly escape through the wood as vapor, which is called the angel’s share, and they don’t leave at the same rate. Whichever leaves faster determines whether the proof goes up or down. In hotter environments where water moves through the wood more quickly, the remaining whiskey is more concentrated, which causes the proof to rise. On the other hand, for barrels in damp climates like the first floor of a rickhouse, the water isn’t escaping as rapidly, but ethanol evaporation happens in the barrel, so proof can fall as well.
Brand & Industry History
Pursuit Spirits is represented by co-founders Kenny Coleman and Ryan Cecil, who also host Bourbon Pursuit, a podcast covering whiskey news, reviews, and interviews. Their Pursuit United Barrel Proof Rye won Double Platinum and Best Blend of Straight Rye at the 2026 ASCOT Awards. Additionally, their Whole Shebang experience was named North America’s Leading Bourbon Distillery Tour at the 2026 World Travel Awards.
What This Means
For producers, the choice between full proof and barrel proof involves practical considerations, including consistency and labeling. According to Coleman, bottling at a consistent full proof can simplify production compared with barrel proof releases, whose strengths may vary from batch to batch. A barrel proof release is rarely consistent, and putting a new proof on every label is an arduous process, even when completed in large batches. Some brands also print the proof directly on the glass, making a consistent bottling strength particularly useful.
Consumer Takeaway
For drinkers, the answer comes down to personal preference. When choosing a bottle, consumers are encouraged to look beyond the terminology and focus on what they enjoy. Higher proof doesn’t mean better whiskey; it can be unbalanced, too hot, or astringent. That is why a master blender or a tasting panel gets to be the guardian of the brand. It is on them to make sure the barrels that go towards a barrel proof expression is a sip worth having twice. Preferences may change as different whiskeys are tried, and the proof enjoyed most matters more than the designation on the label.
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