The fastest way to understand why whiskey enthusiasts argue passionately is to taste a single malt Scotch and a bourbon back-to-back. Both are “whiskey,” but they come from different countries, different grains, and different traditions — and they taste like it. Here is how to run the comparison yourself.
The fundamental differences
Bourbon is American whiskey made from a mash bill of at least 51% corn (most are 65 to 80%), distilled in the U.S., and aged in new charred American White Oak barrels. The new oak is the crucial part — it gives bourbon its caramel, vanilla, and baking-spice character. Bourbon may be made anywhere in the United States from Kentucky to California to New York to Florida.
Single Malt Scotch is whisky made at a single distillery from 100% malted barley, aged in used oak barrels (typically former bourbon or sherry casks), and produced in Scotland. The grain is different, the oak barrels are mostly reused, and the climate the whisky ages in — cool, damp Scottish coast — is dramatically different from bourbon unless you live in the Pacific Northwest:)
What to taste — a four-bottle side-by-side
Pick one example from each corner of the spectrum:
- Bourbon, wheated (e.g., Maker’s Mark or Weller). Softer, sweeter, gentle.
- Bourbon, high rye (e.g., Bulleit, Four Roses Single Barrel). Spicier, more structured.
- Single malt, Highland (e.g., Glenmorangie or Talisker ). Fruit-forward, honeyed, gentle.
- Single malt, Islay (e.g., Laphroaig 10 or Ardbeg 10). Smoky, briny, medicinal — the most polarizing whisky on earth.
How to actually taste
Pour a small amount (¾ oz) of each into a Glencairn or tulip-shaped glass. Sniff each first without tasting — the bourbon will smell sweeter and oakier; the Speyside will smell of orchard fruit; the Islay will smell of campfire and ocean. Then taste each in the order above, with a sip of water between. Notice not just what you taste but where on the tongue you taste it.
The takeaway
Single malt and bourbon are not better or worse than each other — they are answers to different questions. Bourbon is hospitable; it tastes like dessert. Single malt is a longer conversation; it rewards attention. A good side-by-side reveals both.
If you want to host a guided side-by-side tasting for friends, family, or a corporate team, that is exactly what we do at All Spirits Events — full-format whiskey education led by Adam Levy, founder of the New York International Spirits Competition. Contact us to plan yours.
