Bourbon vs Whiskey: What's the Difference?

Is all Whiskey Bourbon? Not quite

All bourbon is whiskey, but not all whiskey is bourbon. The difference between whiskey and bourbon is that whiskey is the big, welcoming family, while bourbon follows a specific set of United States of America rules that give it a character all its own.

There are many kinds of whiskey (or “whisky”, depending on where you’re from). Such as Scotch whisky, Irish whiskey, Tennessee whiskey, rye whiskey, bourbon whiskey and, of course, Kentucky Straight Bourbon Whiskey. At Jim Beam, we’re pretty partial to those last two, and we want to tell you what separates bourbon from the rest.

Bourbon has a specific set of requirements that put it in a category of its own — and those requirements aren’t just paperwork. They’re what makes it taste the way it does. We’ve been making bourbon the right way since 1795, a tradition you can trace through the Beam Story. Not because we had to. Because we figured out early on that the right way is also the better way.

The Standards That Separate Bourbon from Whiskey

In 1964, Congress recognized bourbon as a distinctive product of the United States and wrote into law what the best makers were already doing. Corn at its heart, American oak in its aging. Flavor built through grain, barrel time and care, the result of a bourbon-making process that feels like second nature after generations.

At Jim Beam, those standards have felt familiar for generations. We’ve always built our bourbon the right way. Not because someone told us to. Because grain, oak and time have always been right by us.

Made in the United States of America (not Kentucky)
Fermented mash of at least 51% corn
Distilled at no more than 160 proof (80% ABV)
Barreled at no more than 125 proof (62.5% ABV)
Stored in American white oak barrels
Bottled at no less than 80 proof (40% ABV)
Neutral spirits not permitted
Free from additives

This Is What Makes It Bourbon

Why corn matters

When European settlers arrived in America, they brought their grains with them. Barley had its place. Rye had its place. But in Kentucky, in the late 1700s, corn grew abundantly and reliably. For early Kentucky distillers, including the Beams, corn was not just available. It made something different.

The flavor difference: Bourbon vs Whiskey

One of the clearest taste differences between bourbon and whiskey from other traditions comes from the barrel. Bourbon must age in virgin American oak barrels, where the wood helps shape the color, smoothness and flavor that make bourbon so easy to enjoy.

It helps give bourbon its deeper color and its smooth, mellow flavor, with notes of vanilla, caramel and oak. That flavor is not added. It comes from the grain, the wood, and the time they spend together.

The proof rules help protect that character, too. Bourbon is distilled at no more than 160 proof (80% ABV), entered into the barrel at no more than 125 proof (62.5% ABV), and bottled at no less than 80 proof (40% ABV). By the time it reaches the bottle, only water can be added to bring it to proof. Nothing else.

And when we’re done with those barrels, other whiskeys, wines and beers have been known to use them, hoping to pick up some of that bourbon character left in the wood.

We take that as a compliment.

Four Years in Oak. No Additives.

The law says two years for Straight Bourbon. We’ve always treated that as a starting point, not a finish line. Jim Beam Kentucky Straight Bourbon Whiskey is aged for a minimum of four years because those extra seasons matter.

Kentucky’s climate does a lot of work. Warm summers push the bourbon into the wood. Cooler winters draw it back out. Season after season, that movement helps build color, smoothness and flavor. It is not about making bourbon sound more complicated than it is. It is about letting oak and time do what they do best.

And when the bourbon comes out of the barrel, nothing goes in except water to bring it to proof. No added flavoring. No added coloring. No neutral spirits.

Four years in fresh American oak gives Jim Beam its character. We’ve never felt the need to dress it up.

Common bourbon myths worth busting

Bourbon has rules. A lot of them. And honestly, we don’t mind — we’ve been following them longer than most people have been asking about them. But over the years, a few myths have stuck around that blur what bourbon actually is.

So let’s clear them up.

Kentucky has a monopoly on Bourbon

You’ve probably heard that bourbon must come from Kentucky. It sounds true, but it isn’t. Bourbon can legally be made anywhere in the United States of America.

That said, Kentucky has earned its place in bourbon history. The climate, the limestone-filtered water and the generations of craft passed down there all help shape the way bourbon matures and tastes. Those things are not legal requirements, but they do make a difference.

That is why Jim Beam makes its bourbon in Clermont, Kentucky. Not because Kentucky is the only place bourbon can be made, but because it is the place we know best. The map alone does not make a whiskey bourbon. What happens in the mash, the barrel and the bottle does.

Every Bourbon Spends Two Years in the Barrel

The law does not demand two years for every bourbon. That two-year mark applies to Straight Bourbon.

But time matters. It deepens the color, rounds out the flavor and brings those notes of vanilla, caramel and oak forward from the charred barrel. The law sets one standard. At Jim Beam, we give our bourbon more time.

Jim Beam Kentucky Straight Bourbon Whiskey is aged for a minimum of four years in newly charred American oak barrels. We do it because those extra seasons matter, and because the barrel has always been one of our best partners.

All Bourbon Goes Through the Same Filter

It doesn’t. Bourbon law doesn’t require one specific filtration method, so each maker has to decide how to handle that final step before bottling.

Some producers filter more heavily. Others keep it lighter. At Jim Beam, the goal is simple: keep the bourbon clear and consistent while protecting the flavor the barrel worked so hard to build.

That final touch matters. By the time bourbon reaches the bottle, the corn, oak, char and time have already done the heavy lifting. Our job is to protect the character the barrel worked so hard to build.