Bourbon vs. Whiskey: What Makes Bourbon Different?

“Bourbon” and “whiskey” get tossed around like they’re the same thing, but that’s not quite right. All bourbons are whiskeys, but not all whiskeys are bourbons. Confused yet? Don’t worry—let’s clear up what sets bourbon apart and why it matters when you’re picking your next bottle.

The Traditional Definition of Bourbon

Historically, bourbon has a strict set of rules:

• Made from at least 51% corn in the mashbill.
• Aged in new, charred oak barrels.
• Distilled to no more than 160 proof (80% ABV).
• Entered into the barrel at 125 proof (62.5% ABV) or less.
• Bottled at a minimum of 80 proof (40% ABV).
• Produced in Bourbon County, Kentucky (though this last one’s hotly debated—more on that later).

This is the classic definition you’ll hear from old-school distillers in Kentucky’s Bourbon Country. That 51% corn is key—it’s what gives bourbon its sweet, signature kick compared to other whiskeys.

Modern Bourbon: A Looser Take

Head to your local liquor store, and you’ll spot some cracks in that traditional mold. High-proof heavyweights like George T. Stagg, Booker’s, and Elijah Craig Barrel Proof soar past 125 proof at bottling. And then there’s the geography—bourbons like Ben Holladay (Missouri) and Etesia (Oregon) prove you don’t need Kentucky roots to wear the label. So, what’s the deal?

Today’s consumer-friendly definition skips some of the stricter rules:

• At least 51% corn.
• New, charred oak barrels.
• Barrel entry at 125 proof or less.
• Bottled at 80 proof minimum.

The Kentucky-only rule? More of a tradition than a law—bourbon can legally be made anywhere in the U.S.

Why Bourbon Stands Out From Whiskey

So, what’s the big difference? Whiskey is a broad category—think Scotch, Irish whiskey, or rye—each with its own grain mix and aging rules. Bourbon’s a whiskey subset with specific requirements (that corn and new oak combo) that shape its sweeter, richer profile. The loose modern rules mean tons of variety—smooth sippers, bold barrel-proofs, you name it—which is why bourbon’s flavor range is so wide and exciting.

Explore Bourbon Your Way

With all this variety, finding your favorite bourbon is half the fun. Want to track what you love and discover new pours? Check out the world’s best whiskey app, NEAT: Whiskey Finder! Rate your picks, share your thoughts, and uncover bottles that match your taste. What’s your go-to bourbon style? I’d love to hear!