What is the difference between Tennessee bourbon and Kentucky bourbon?

Answered by Michael Blake

As an experienced sommelier and brewer, I am thrilled to delve into the world of and explain the nuances between bourbon and Kentucky bourbon. Both are iconic American whiskies, but they do have distinct differences that contribute to their unique flavors and characteristics.

1. Location and Legal Definitions:
– Tennessee Bourbon: Produced in the state of Tennessee, Tennessee bourbon follows the same legal requirements as other bourbons, such as being made from a grain mixture containing at least 51% corn and aged in new charred oak . However, Tennessee undergoes an additional step called the Lincoln County Process.
– Kentucky Bourbon: Kentucky is often considered the birthplace of bourbon, and it has a long-standing tradition of producing exceptional whiskies. Kentucky bourbon must follow the same legal requirements as Tennessee bourbon but does not undergo the Lincoln County Process.

2. The Lincoln County Process:
– Tennessee Bourbon: One of the key differences between Tennessee and Kentucky bourbon lies in the charcoal filtering process known as the Lincoln County Process, which is unique to Tennessee whiskey. Before aging, the whiskey is filtered through charcoal made from sugar maple trees. This process helps to remove impurities and mellows the flavors, resulting in a smoother and slightly sweeter taste.
– Kentucky Bourbon: Kentucky bourbon does not undergo the Lincoln County Process, and instead, the whiskey goes straight into the aging process after distillation. This allows the flavors to develop primarily through the interaction with the charred oak barrels.

3. Flavor Profile:
– Tennessee Bourbon: The charcoal filtering process in Tennessee whiskey contributes to its smoothness and distinctive flavor profile. The additional filtration removes some of the harsher flavors and impurities, resulting in a smoother and more mellow taste. Tennessee bourbon can often have subtle notes of caramel, vanilla, and a touch of sweetness.
– Kentucky Bourbon: Kentucky bourbon tends to have a bolder and richer flavor profile compared to Tennessee bourbon. The aging process, without the charcoal filtration, allows for more interaction between the whiskey and the charred oak barrels, resulting in deeper flavors of oak, caramel, spice, and sometimes a hint of smokiness.

4. Cultural Significance:
– Tennessee Bourbon: Tennessee whiskey, with its unique production process, has garnered its own distinct identity and cultural significance. Iconic brands such as Jack Daniel's and George Dickel have solidified Tennessee whiskey as a symbol of the state's whiskey-making heritage.
– Kentucky Bourbon: Kentucky bourbon, often referred to as “America's Native Spirit,” holds a special place in American history and culture. With countless distilleries located in the scenic hills of Kentucky, the state has become synonymous with bourbon production, and it has even been recognized as a significant aspect of the state's economy and tourism.

While Tennessee bourbon and Kentucky bourbon share many similarities in terms of legal requirements and production methods, it is the additional charcoal filtration process used in Tennessee whiskey that sets it apart. This process contributes to the smoothness and distinctive flavor profile of Tennessee bourbon, while Kentucky bourbon tends to have a bolder and richer taste due to the aging process without charcoal filtration. Both styles have their own unique character and cultural significance, making them beloved choices among whiskey enthusiasts worldwide.