Wheated vs. High-Rye Bourbon: Shopping by Mash Bill, Not by Brand

You found a bourbon you loved, and now you’re standing in front of a shelf of dozens of others, most from brands you’ve never tried, with no way to know which one tastes anything like the bottle you already liked. The brand name won’t tell you. The mash bill will — specifically, whichever grain is doing the work alongside corn.

Every bourbon has a “second grain,” and it’s usually rye or wheat

Bourbon only has one hard requirement on its mash bill: at least 51% corn. The rest — usually somewhere between roughly a quarter and half the mash — is where distilleries actually differentiate their whiskey, and almost always it’s some mix of a second grain plus a small amount of malted barley. That second grain is either rye or wheat, and which one a distillery chose is the single biggest lever on how the finished bourbon tastes.

High-rye bourbon: more rye, more spice

Most standard bourbons run somewhere around 10–15% rye in the mash bill. “High-rye” bourbons push that meaningfully higher — generally somewhere in the 18–35% range — without crossing into rye whiskey territory, which would require crossing 51%. A few concrete examples: Bulleit Bourbon runs about 28% rye, and Four Roses distills two mash bills, one at 20% rye and one at 35%, across its various recipes.

The effect on flavor is direct: more rye pushes the whiskey toward spice, pepper, and a drier finish, layered on top of corn’s underlying sweetness rather than replacing it. If the bottle you loved had noticeable black pepper, clove, or a dry, spicy finish, a high-rye bourbon is the more direct path to something similar — more so than switching to rye whiskey outright, which would lose the corn-forward sweetness that made the first bottle balanced.

Wheated bourbon: rye swapped out entirely

Wheated bourbons take the opposite approach: they drop rye from the recipe almost entirely and use wheat as the second grain instead, typically somewhere in the mid-to-high teens as a percentage of the mash. Maker’s Mark uses about 16% wheat; W.L. Weller — the bourbon whose original 19th-century recipe helped define the style — uses around 17%, with no rye in the mash bill at all.

Wheat doesn’t bring rye’s spice. It softens the whiskey instead, leaning toward vanilla, caramel, and a smoother, more mellow mouthfeel with less of a peppery bite. If the bottle you loved read as soft, sweet, or easy rather than spicy, that’s very likely a wheated bourbon, and other wheated releases are the closest thing to “more of that” you can shop for.

Using this at the shelf

Two practical moves follow from this:

• If you can find the actual mash bill, use its rye or wheat percentage directly — many distilleries publish it, and it’s a far more precise match than the brand name or the price tier.
• If you can’t find it, look for the words “wheated” or “wheater” (softer, sweeter) versus mentions of “high-rye” or a stated rye percentage above the high-teens (spicier, drier) on the label or the distillery’s own site.

Two bourbons from completely different brands, at completely different price points, can taste far more alike than two bottles from the same brand’s own lineup — because the thing that actually predicts flavor isn’t the name on the front. It’s whichever grain is standing next to the corn.

Sources

• The Difference Between High-Wheat And High-Rye Bourbon (Tasting Table — Maker’s Mark and W.L. Weller wheat percentages, flavor contrast)
• Kentucky High-Rye Bourbon: Mash Bills, Distilleries, and Tasting Notes (Kentucky Spirits Authority — Bulleit and Four Roses rye percentages, high-rye range definition)