What proof is American bourbon?

Answered by James Porterfield

As an expert sommelier and brewer, I have had the pleasure of exploring the world of and understanding its unique qualities. One aspect that sets bourbon apart is its proof, which refers to the content of the spirit. In the case of American bourbon, it is bottled at no less than 80 US proof, equivalent to 40% alcohol by volume (abv).

Proof is a historical term that dates back to the 18th century when were tested for their alcohol content using gunpowder. If the gunpowder ignited, it was deemed to be “proof” that the spirit contained a certain amount of alcohol. Over time, the proof system has evolved, and today it is simply a measure of the alcohol content in a spirit.

When it comes to bourbon, the proof plays an important role in determining its flavor profile and overall drinking experience. A higher proof bourbon tends to have a more intense and concentrated flavor, while a lower proof bourbon may be smoother and easier to drink.

The minimum proof requirement for bourbon is set by law in the United States. According to the Federal Standards of Identity for Distilled Spirits, bourbon must be distilled to no more than 160 proof (80% abv) and entered into the barrel for aging at no more than 125 proof (62.5% abv). After aging, bourbon is typically filtered and diluted with to reach the desired proof for bottling.

It is worth noting that not all bourbons are bottled at the minimum 80 proof. In fact, many distilleries offer a range of proofs to cater to different preferences and palates. Some bourbons may be bottled at higher proofs, often referred to as “barrel proof” or “cask strength,” which can be upwards of 120 proof or even higher. These bourbons are often sought after by enthusiasts who enjoy the full-bodied, robust flavors they offer.

On the other end of the spectrum, there are also lower proof bourbons available, typically labeled as “bottled-in-bond” or “100 proof.” These bourbons are bottled at 100 US proof (50% abv) and are a popular choice for those who prefer a slightly milder taste or enjoy mixing bourbon in .

The choice of proof in bourbon ultimately comes down to personal preference. Some individuals may enjoy the bold and intense flavors of a high proof bourbon, while others may prefer the smoothness and balance of a lower proof expression. It's all about finding what resonates with your taste buds and enhances your overall drinking experience.

In my own journey as a sommelier and brewer, I have had the opportunity to taste and appreciate bourbons of varying proofs. Each proof level brings its own unique characteristics and nuances to the forefront, allowing me to explore the depth and complexity of this beloved American spirit.

To summarize, American bourbon is bottled at a minimum of 80 US proof (40% abv), but there is a wide range of proofs available to cater to different preferences and tastes. Whether you prefer a higher proof bourbon for its intensity or a lower proof option for its smoothness, there is a bourbon out there to suit every palate. So, go ahead and raise a glass of bourbon, and embark on your own journey of discovery and appreciation for this remarkable spirit.