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The Difference Between Bourbon and Tennessee Whiskey Explained
Pull up a chair. We need to talk about one of the most misunderstood relationships in American whiskey.
See, folks get bourbon and Tennessee whiskey confused all the time—and for good reason. They’re kissing cousins. Practically siblings. But calling Tennessee whiskey “just bourbon” is like calling a fiddle “just a violin.” Technically accurate, maybe, but you’re missing the whole point.
So let’s settle this once and for all. What separates a bottle of Jack Daniel’s from a bottle of Maker’s Mark? Why does Tennessee get its own category when it follows most of the same rules as bourbon? And what the hell does charcoal have to do with any of this?
Grab your glass. This one’s worth savoring.
The Short Answer (For Those in a Hurry)
Here’s the headline: Tennessee whiskey IS bourbon… with one extra step.
Both follow the same basic rules—51% corn, new charred oak barrels, made in the USA, all that. But Tennessee whiskey adds something called the Lincoln County Process, where the fresh distillate gets filtered through sugar maple charcoal before it goes into the barrel. That’s it. That’s the difference.
By law, Tennessee whiskey must be made in Tennessee and filtered through maple charcoal. Bourbon can be made anywhere in America and doesn’t require charcoal filtering. Both are excellent. Both have their place. And if you’re the type who needs to argue about which is “better,” you’re missing the point entirely.
Now, if you want the full story—the history, the science, the legal wrangling, and what it all means for your taste buds—keep reading.
The Bourbon Rulebook (Everyone’s Starting Point)
Before we get into what makes Tennessee whiskey special, we need to understand what makes bourbon bourbon. The federal government laid down these rules decades ago, and they’re non-negotiable:
Must be made in the United States. Not just Kentucky, though Kentucky produces about 95% of it. You can make bourbon in Tennessee, Texas, New York, or anywhere else on American soil. That old myth about it having to come from Kentucky? Pure fiction.
Mash bill must be at least 51% corn. This is where bourbon gets its sweetness. The rest of the recipe can be rye, wheat, or malted barley—whatever the distiller wants—but corn’s got to be the star.
Distilled to no more than 160 proof (80% alcohol by volume). This keeps the flavor honest. Go higher and you’re making neutral spirits, not whiskey.
Aged in new, charred oak barrels. Every barrel’s got to be virgin wood, charred on the inside. This is where bourbon gets its color and a big chunk of its flavor. You can’t reuse barrels and call it bourbon.
Enters the barrel at no more than 125 proof (62.5% ABV). Another ceiling to preserve character.
Bottled at minimum 80 proof (40% ABV). Anything less and you’re selling disappointment.
No additives allowed. Just whiskey and water to proof it down. No coloring, no flavoring, nothing but what came out of that barrel.
Tennessee whiskey follows every single one of these rules. Every. Single. One. That’s why, technically speaking, Tennessee whiskey qualifies as bourbon under federal law. But Tennessee decided that wasn’t good enough.
The Lincoln County Process: Where Tennessee Goes Its Own Way
Here’s where things get interesting. And by interesting, I mean “involves a man named Nearest Green, sugar maple trees, and a technique that might’ve come from West Africa.”
What Is the Lincoln County Process?
The Lincoln County Process is charcoal filtering, plain and simple. Before Tennessee whiskey goes into the barrel to age, it’s filtered through several feet of sugar maple charcoal. Not after aging, like some whiskeys do for polish. Before. This is what separates Tennessee whiskey from bourbon.
At Jack Daniel’s, they pack ten feet of sugar maple charcoal into massive vats and slowly drip the fresh-distilled whiskey through it—drop by drop, taking three to five days. At George Dickel, they use even deeper vats (13 feet), chill the whiskey to 40°F, and let it steep in the charcoal rather than just drip through.
The charcoal’s made from sugar maple wood—they burn stacks of it, then douse the fire before it turns to ash. What’s left gets ground up into chunks about the size of a bean. Those chunks go into the filtering vats, and the whiskey passes through.
What Does Charcoal Filtering Actually Do?
Here’s what it doesn’t do: add flavor. Folks hear “sugar maple charcoal” and think it makes the whiskey taste like maple syrup. Nope. Charcoal’s a filter, not a flavoring agent. Anyone who’s ever used a Brita knows this.
What charcoal filtering does is remove stuff—harsh congeners, certain esters, volatile compounds that make young whiskey rough around the edges. Research from the University of Tennessee found that some compounds declined by up to 30% after the Lincoln County Process. The whiskey comes out smoother, mellower, more approachable right from the start.
Think of it like this: bourbon ages into smoothness. Tennessee whiskey gets a head start on the process.
The History (And the Man Who Taught Jack Daniel Everything)
The Lincoln County Process gets its name from Lincoln County, Tennessee, where Jack Daniel’s distillery was originally located. But the process itself? That goes way back, possibly to charcoal filtering techniques used in West Africa to purify water and foods.
Now here’s where the story gets real, and real important: Jack Daniel learned the Lincoln County Process from Nathan “Nearest” Green, an enslaved man who was renowned as a skilled distiller in the mid-1800s. Green worked for a preacher named Dan Call who ran a distillery. When young Jack Daniel—maybe seven or eight years old, an orphan looking for work—showed up at Call’s farm, Call introduced him to Green with words to this effect: “Uncle Nearest is the best whiskey maker I know of.”
Green taught Daniel the sugar maple charcoal filtering technique, and after Emancipation, Green became Jack Daniel’s first master distiller—believed to be the first Black master distiller in America. Seven generations of Green’s family have worked at Jack Daniel’s distillery. His descendant, Victoria Eady Butler, is now the master blender for Uncle Nearest Premium Whiskey, the brand established in his honor.
This history matters. The Lincoln County Process isn’t just some marketing gimmick—it’s a technique with deep roots, taught by a man who never got proper credit for 150 years. Now you know his name.
Tennessee’s Legal Requirements (Yes, There’s Actually a Law)
In 2013, Tennessee Governor Bill Haslam signed House Bill 1084 into law, officially defining what can and cannot be called Tennessee whiskey. Before that, the only real definition came from NAFTA, which basically said Tennessee whiskey was bourbon made in Tennessee. The state decided that wasn’t specific enough.
Tennessee Code Annotated 57-2-106 requires that Tennessee whiskey must be manufactured in Tennessee, made from at least 51% corn, distilled to no more than 160 proof, aged in new charred oak barrels in Tennessee, filtered through maple charcoal prior to aging, placed in barrels at no more than 125 proof, and bottled at minimum 80 proof.
Notice anything? That’s the federal bourbon requirements, plus two extras: (1) must be made in Tennessee, and (2) must use the Lincoln County Process.
There’s one exception to the charcoal filtering rule: Benjamin Prichard’s Distillery got grandfathered in, allowing them to call their product Tennessee whiskey without using the Lincoln County Process. They’re ironically the only distillery actually located in Lincoln County now, and they don’t use the process that bears its name. Life’s funny like that.
The 2013 law caused some controversy. Jack Daniel’s supported it, arguing Tennessee whiskey needed the same kind of protected standards that Scotch and Champagne enjoy. Smaller distilleries opposed it, saying it was too restrictive and favored Jack Daniel’s process. The debate got heated. But the law stuck.
Bourbon vs Tennessee Whiskey: Side-by-Side Comparison
Let’s put them next to each other and see what’s what.
| Category | Bourbon | Tennessee Whiskey |
|---|---|---|
| Production Location | Anywhere in the USA | Tennessee only |
| Mash Bill | At least 51% corn | At least 51% corn |
| Distillation Proof | Maximum 160 proof | Maximum 160 proof |
| Barrel Entry Proof | Maximum 125 proof | Maximum 125 proof |
| Aging Barrels | New charred oak | New charred oak |
| Bottling Proof | Minimum 80 proof | Minimum 80 proof |
| Additives | None (except water) | None (except water) |
| Special Process | None required | Lincoln County Process (maple charcoal filtering before aging) |
| Aging Requirement | None (but “straight” bourbon needs 2+ years) | No minimum, but typically 4+ years |
See? Nearly identical, except for location and that charcoal filtering step.
How They Taste Different
Alright, enough talk about laws and processes. What does all this mean when you pour a glass?
Bourbon’s Flavor Profile
Bourbon tends toward bold and sweet. That high corn content gives you notes of caramel, vanilla, toffee—like biting into cornbread with butter melting on top. The charred oak adds darker notes: oak tannins, tobacco, maybe some dark fruit or baking spices like cinnamon and nutmeg. It’s full-bodied, rich, with a finish that can have some heat to it. Bourbon doesn’t apologize for itself.
Tennessee Whiskey’s Flavor Profile
Tennessee whiskey runs smoother from the start. The charcoal filtration gives it a mellower character, often described as having a smoother and slightly sweeter taste compared to bourbon, with flavors of caramel, vanilla, and brown sugar. The finish tends to be cleaner, softer. You still get that corn sweetness, still get the oak influence, but the rough edges have been sanded down a bit.
Some tasters describe subtle charcoal notes in Tennessee whiskey—not like licking a briquette, more like the memory of smoke. It’s there if you look for it, but it’s not the main event.
Tasting Them Side-by-Side
Want to really understand the difference? Pour yourself a bourbon and a Tennessee whiskey, both around the same proof and age, and taste them next to each other.
Look: Both should be amber, though bourbon might run a shade deeper depending on age and barrel char.
Smell: Bourbon typically offers bold notes of vanilla, oak, and spice, while Tennessee whiskey leans lighter with hints of maple, caramel, and grain.
Sip: Let each one coat your tongue. Bourbon often packs more punch, while Tennessee whiskey is usually smoother on the finish.
Finish: Bourbon may have a lingering heat, while Tennessee whiskey finishes cleaner and sweeter.
Neither’s better. They’re just different tools for different jobs.
Famous Examples Worth Knowing
Bourbon Brands
- Maker’s Mark — Wheated bourbon (uses wheat instead of rye in the mash bill). Smooth, sweet, approachable.
- Wild Turkey — Higher proof, more rye, more bite. Classic Kentucky bourbon.
- Elijah Craig — Small batch bourbon with deep oak and vanilla notes. Great value.
- Buffalo Trace — Consistently excellent, if you can find it on the shelf.
- Four Roses — Uses multiple yeast strains and mash bills. Complex and well-balanced.
Explore more about bourbon’s fascinating history and production methods.
Tennessee Whiskey Brands
- Jack Daniel’s Old No. 7 — The big dog. The one everybody knows. Black label, square bottle, Lincoln County Process all the way.
- George Dickel — The other major Tennessee player. They spell it “whisky” without the ‘e’ and chill their whiskey before filtering.
- Uncle Nearest — Named after Nearest Green, honoring his legacy. Excellent whiskey with a story that matters.
- Nelson’s Green Brier — Historic brand revived by the Nelson family. Uses the Lincoln County Process with pride.
When to Drink What
Both bourbon and Tennessee whiskey work great neat, on the rocks, or in cocktails. But there are times when one might be the better choice.
Reach for bourbon when:
- You want something bold and assertive
- You’re making an Old Fashioned or Manhattan
- You’re sipping something with high proof and don’t mind the heat
- You want complex layers of flavor to think about
Reach for Tennessee whiskey when:
- You want something smoother and more approachable
- You’re introducing someone to whiskey for the first time
- You’re making a Lynchburg Lemonade or Whiskey & Coke
- You want easy-drinking whiskey that doesn’t demand too much attention
Honestly though? Drink what tastes good to you. Don’t let anyone tell you there’s a “right” whiskey for any occasion.
Curious about how bourbon compares to its spicy cousin? Check out our complete guide to rye whiskey.
The Bourbon vs Tennessee Whiskey Debate (And Why It Doesn’t Matter)
People love to argue about whether Tennessee whiskey is “real bourbon” or its own thing. Here’s the truth: it’s both.
Legally, under federal standards, Tennessee whiskey meets every requirement to be called bourbon. All Tennessee whiskey is technically bourbon, but not all bourbon is Tennessee whiskey. It’s like how all squares are rectangles, but not all rectangles are squares.
But Tennessee whiskey producers don’t call their stuff bourbon. They call it Tennessee whiskey. That’s not just marketing—it’s pride in the Lincoln County Process, pride in their state’s distilling heritage, and pride in doing something just a little bit different.
Does the charcoal filtering make a big enough difference to warrant its own category? The state of Tennessee thinks so. Major producers think so. And if you’ve tasted them side by side, you probably think so too.
But at the end of the day, they’re family. Close family. Both are excellent examples of American whiskey-making tradition, both have passionate fans, and both deserve respect.
Common Questions Answered
Q: Is Jack Daniel’s bourbon? A: Technically yes, it meets all federal bourbon requirements. But Jack Daniel’s calls itself Tennessee whiskey because of the Lincoln County Process. They’re proud of that extra step.
Q: Can bourbon be made in Tennessee? A: Absolutely. Tennessee produces both bourbon (without charcoal filtering) and Tennessee whiskey (with charcoal filtering). Location doesn’t make it Tennessee whiskey—the process does.
Q: Does the charcoal add maple flavor? A: No. Charcoal removes compounds; it doesn’t add flavor. The “sugar maple” part just refers to what kind of wood they burn to make the charcoal.
Q: Why is Tennessee whiskey smoother than bourbon? A: The charcoal filtering removes harsh congeners and volatile compounds, making the whiskey mellower from the start. It’s like giving young whiskey a head start on the aging process.
Q: Is Tennessee whiskey better than bourbon? A: Neither’s better. They’re different. Bourbon’s bolder. Tennessee whiskey’s smoother. Pick what suits your taste and the moment.
Q: Can I make Tennessee whiskey at home? A: You can make whiskey at home where it’s legal (varies by state and often requires permits). But you can’t legally call it “Tennessee whiskey” unless it’s made in Tennessee following state law. Also, distilling spirits at home is federally regulated, so know your local laws.
The Bottom Line
Bourbon and Tennessee whiskey are siblings raised in the same house with slightly different rules. Both follow the same basic recipe, both age in new charred oak, both represent American whiskey-making at its finest.
The difference comes down to one thing: the Lincoln County Process. That step—filtering fresh whiskey through sugar maple charcoal before it goes into the barrel—takes Tennessee whiskey from “technically bourbon” to something distinctly its own.
Is the difference huge? Not earth-shattering. But it’s real, it’s measurable, and it’s worth appreciating. Tennessee whiskey tends smoother, softer, more approachable. Bourbon tends bolder, richer, more assertive. Both have their place on your shelf.
More importantly, the Tennessee whiskey tradition carries the legacy of Nearest Green, the Black master distiller who taught Jack Daniel his craft and helped create one of the most famous whiskeys in the world. That history matters. That story deserves to be told.
So the next time someone asks you about bourbon versus Tennessee whiskey, you can give them the short answer or the long one. Either way, you’ll know the truth: they’re both great, they’re both American, and they’re both worth drinking.
Now quit reading and pour yourself a glass. You’ve earned it.
Keep Learning About American Whiskey
Want to dive deeper into the world of American spirits? We’ve got you covered:
- Everything you need to know about bourbon whiskey
- The complete guide to rye whiskey and its spicy comeback
- Comparing bourbon, rye, Scotch, Irish, Japanese, and Canadian whiskeys
- Irish whiskey’s history and near-disappearance
- Japanese whisky and the spirit that took the world by storm
- Canadian whisky: smooth, versatile, and misunderstood
Pick your poison and keep exploring. There’s always more to learn.
One Response
Very good read, for someone that is an avid and fairly recent bourbon and whiskey drinker this is very enlightening. Anyone can figure out the difference in proof, but when I go to the liquor store and look around at the different whiskeys and bourbon and wonder what the heck is the difference here and now I know. To jump into a strong bourbon that burns going down, one should tend to stay away at the beginning from the hard stuff. Knowing now to get a lighter Tennessee whiskey because it is a bit smoother before building up to harder proof bourbon would be wise! Lots of information here with an easy navigation window to the right if I want to skip ahead.