What is American Whiskey

What Is American Whiskey? A Tasting Guide to Bourbon, Tennessee Whiskey & Rye

August 5, 2026WhiskeyOnline NZ

What Makes a Whiskey "American"?

"American whiskey" isn't one style — it's a family of legally defined categories, each with its own rules for grain, proof, and barrel. The three you'll see most often on a New Zealand back bar are Bourbon, Tennessee Whiskey, and Rye Whiskey. They're all made in the United States and aged in new charred oak, but the grain recipe (the "mash bill") and a couple of production quirks are what give each style its own personality. Below, we'll walk through what defines each category and taste through ten bottles from our own shelves so you can taste the differences for yourself.

Bourbon: America's Native Spirit

Bourbon can legally be made anywhere in the United States, not just Kentucky — though the vast majority still comes from there. To carry the name, it must be distilled from a mash of at least 51% corn, distilled to no more than 160 proof, entered into the barrel at no more than 125 proof, and aged in new, charred oak containers. There's no minimum age for "bourbon," but "straight bourbon" must spend at least two years in wood. The corn base is what gives bourbon its signature sweetness — caramel, vanilla, baked fruit — while the rest of the mash bill (rye or wheat, plus malted barley) shapes the spice or softness around it.

  • Buffalo Trace American Bourbon 1L — $79.99 — The benchmark everyday bourbon. Expect brown sugar and toffee apple on the palate with cinnamon and rum-spice on the nose, a touch of espresso and dark chocolate in the middle, and a cinnamon-gum finish that lingers cleanly.
  • Wild Turkey 101 Proof Bourbon 1L — $85.99 — Bottled at a robust 50.5% ABV, this is bourbon with its collar up. Toasted oak, vanilla and citrus zest on the nose lead into a rich, peppery palate of caramel and honeyed toast, finishing long with spice and char.
  • Bulleit Bourbon 700ml — $65.99 — A high-rye mash bill gives Bulleit a brighter, spicier profile than most. Orange zest and toasted oak on the nose, warming winter spice and a whisper of tobacco leaf on the palate, with a smooth, peppery finish.
  • Four Roses Small Batch Bourbon 700ml — $79.99 — A blend of hand-picked recipes gives this one real depth: winter spice, buttered toast and honey on the nose, opening into crème anglaise, ripe fruit and toasty oak on the palate. Smooth and beautifully balanced.
  • Elijah Craig Small Batch Bourbon 750ml — $69.99 — Named for the Baptist minister credited with popularising charred-oak ageing. Honeycomb, cedar and marmalade on the nose, baked apple and cinnamon on the palate, and a finish of nutmeg and charred oak.

Single Barrel Bourbon: One Barrel, One Character

Most bourbon is a "batch" — dozens or hundreds of barrels vatted together for a consistent house style. Single barrel bourbon skips that step: every bottle comes from one barrel, hand-selected for its quality, so the flavour can shift slightly from batch to batch. It's the closest you'll get to tasting a distillery's raw, unblended handiwork.

  • Blanton's Original Single Barrel Bourbon 700ml — $208.99 — The bottle that popularised single barrel bourbon worldwide. A deep nose of nutmeg and baking spice leads into a powerful, dry-vanilla palate with honey and caramel underneath, finishing on returning corn sweetness and nutmeg.
  • Eagle Rare Bourbon 10 Year Old 750ml — $89.99 — A decade in the barrel brings real complexity: toasted oak, flamed orange peel and maple syrup on the nose, honey, buttered bread and oily walnut on the palate, and a finish of vanilla, oak spice and soft leather.

Tennessee Whiskey: The Lincoln County Process

Legally, Tennessee Whiskey is a straight bourbon made only in the state of Tennessee — with one extra step required by state law: the Lincoln County Process. Before it ever touches a barrel, the raw spirit is filtered slowly through a thick bed of sugar-maple charcoal. Jack Daniel's makes its own charcoal on-site, burning maple timber down and packing the coals into ten-foot filtering vats; the result is a whiskey that drinks noticeably softer and rounder than an unfiltered bourbon of the same age. Interestingly, the process applies to the mash bill's grain recipe too — a Tennessee whiskey can lean rye-forward or corn-forward and still go through the same charcoal mellowing.

  • Jack Daniel's Tennessee Travelers Bold & Spicy 500ml — $69.99 — A rye-forward mash bill run through the Lincoln County Process, so you get rye's spice with Tennessee's signature smoothness. Caramel and baking spice on the nose, then soft stone fruit, peppery rye and vanilla on the palate, finishing on oak and white pepper.
  • Jack Daniel's Single Barrel 100 Proof 700ml — $114.99 — Single barrel selection at a bolder 50% ABV. Vanilla, baking spice and ripe banana on the nose, apple-pie sweetness and toasted nuttiness on the palate, with a long finish of brown sugar, oak spice and a little smoke.

Rye Whiskey: Spice-Forward and Bold

Flip bourbon's mash-bill rule and you get rye whiskey: at least 51% rye grain, distilled to no more than 160 proof, entered into the barrel at no more than 125 proof, and aged in new charred oak — the same framework as bourbon, just built around a spicier grain. "Straight rye" needs a minimum two years unblended in wood. Where bourbon leans sweet, rye leans peppery and dry, which is why it's the whiskey of choice for a classic Manhattan or Sazerac — though a good one is well worth sipping neat.

  • Michter's Single Barrel Straight Rye 700ml — $106.99 — One of the most sought-after ryes on the shelf. Caramel, cherry and green apple mingle with rye spice and oak on the nose; the palate warms through baking spice and cinnamon bun sweetness with a light, buttery texture, before a dry finish of gingerbread, oak and leather.

How to Taste and Compare These Styles

The easiest way to understand American whiskey is to taste it side by side. Pour a bourbon, a Tennessee whiskey and a rye together, neat, in the same style of glass, and taste in that order — you'll notice the Tennessee whiskey feels rounder than the bourbon even at similar proof, and the rye cuts in with pepper where the others lead with sweetness. A few drops of water can open up the aromatics on the higher-proof pours like the Wild Turkey 101 or Jack Daniel's Single Barrel. However you drink them, all ten of these bottles are in stock and ready to ship across New Zealand — browse the full range at WhiskeyOnline to build your own tasting flight.

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