Whiskey has a reputation for being serious business, with its own vocabulary and devoted fans. Underneath it all, it is simply grain spirit that has spent time in a barrel. The barrel is where the magic happens.
What is it?
Whiskey is distilled from a fermented mash of grains such as corn, rye, wheat, and malted barley, then aged in wooden barrels. Scotland, Canada, and Japan usually spell it whisky; Ireland and the U.S. usually spell it whiskey. Same family either way.
How is it made?
Grain is cooked into a mash, fermented, and distilled. Fresh off the still, whiskey is as clear as vodka. It gets its color and much of its flavor from resting in wooden barrels. The grains, the still, the type of barrel, and how long it ages all shape the finished whiskey.
What does it taste like?
The barrel gives vanilla, caramel, toasted wood, and baking spice. The grain adds its own accent: corn tastes sweet, rye tastes spicy, wheat tastes soft, and malted barley tastes bready. Some Scotch adds smoke from peat fires used to dry the barley.
What are the main styles?
| Style | The short version |
|---|---|
| Bourbon | Made in the U.S. from at least 51% corn and aged in new charred oak. Sweet, with vanilla and caramel. |
| Rye | At least 51% rye grain. Spicier and drier than bourbon. |
| Tennessee whiskey | Much like bourbon, but filtered through maple charcoal before aging. Mellow and smooth. |
| Scotch | From Scotland, aged at least three years. Single malt comes from one distillery using malted barley; blended Scotch mixes several. Some are smoky. |
| Irish whiskey | Aged at least three years, typically light, smooth, and gently fruity. |
| Canadian whisky | Usually light and blended. Often called “rye” in Canada even when it contains little rye. |
| Japanese whisky | Often modeled on Scotch, known for polish and balance. |
When would you use each style?
Bourbon is the friendly choice for an Old Fashioned or Whiskey Sour. Rye is the traditional base for a Manhattan. Canadian and Irish whiskey shine in easy highballs. Smoky Scotch is best sipped, or used in small amounts for a smoky accent.
Which mixers work well, and why?
Ginger ale and soda water stretch whiskey into a long, easy drink. Lemon and a little sugar balance its richness. Sweet vermouth and bitters deepen its spice. Coffee, honey, and apple cider are cozy cold-weather partners.
What can you substitute?
Bourbon and rye trade places easily; bourbon makes a drink a bit sweeter, rye a bit spicier. Swapping in a smoky Scotch will take over the whole drink, so only do it if you love smoke. In a pinch, an aged rum or brandy can stand in for bourbon.
Did you know?
Bourbon shows how rules define a style. It must be made in the United States from a mash of at least 51% corn and aged in new charred oak containers. So all bourbon is whiskey, but not all whiskey is bourbon. And despite what many people think, bourbon does not have to come from Kentucky, though most of it does.
Try it yourself
Whiskey recipes are coming in a future class. Meanwhile, try an Old Fashioned: stir 2 oz bourbon, 1/4 oz simple syrup, and 2 dashes Angostura bitters with ice, strain over a large ice cube, and twist an orange peel over the top.