The world of whiskey is a complex maze of grains, flavors and distillation processes. Four countries produce distinctly different whiskies: Ireland (Irish Whiskey), Scotland (Scotch), America (Bourbon, Tennessee Whiskey, Rye Whiskey, Blended American Whiskey), and Canada (Canadian Whiskey), although whiskey is made throughout the world. This wide market ensures that almost everyone will find a brand or type that they prefer and, when asked, every whiskey connoisseur has a pointed opinion on which is the best whiskey.
Irish Whiskey:Considered to be the father of all whiskey, Irish Whiskey is often a blend of pot-stilled malted and unmalted whiskey and column-stilled corn-based grain whiskey or, as in the case of Bushmills, triple distilled malted barley (single malt). This complex blend and the fact that Irish Whiskey malt is dried in a closed kiln, away from fire and smoke, distinguish it from its closest whiskey cousin, Scotch. Great care is taken during distillation to keep the temperature low so as not to break the delicate sweet, toasty honey flavor. It is aged in used bourbon (or various wine) barrels for at least 3 years.
By tradition and standard, Scotch Whisky uses the spelling for whisky without the "e". The distinct smoky flavor of this distilled classic is due to the malt drying process. Part of which is done over a peat-fueled fire, which allows the smoke to come in direct contact with the malt. Although smoke does define Scotch, each region of Scotland produces a different and distinct flavor characteristics. When choosing a Scotch you will find either "single malt" or "blended" on the label along with an age statement. In the case of blended, the age is that of the youngest whiskey in the blend.
Single-Malt Scotch Whisky
Single-malt Scotch is produced by a single distillery. There are around 100 distilleries in Scotland that produce a single-malt whisky and each has their own distinct flavor characteristics and notes. After double distilling the malted barley in pot stills, a 140 proof spirit called "plain British spirit" is pumped into oak casks and is aged for at least 3 years. Single malt Scotch whiskies have more flavor blended Scotch and are also used to create those blends.
Blended Scotch Whisky
The majority of Scotch sold is blended and it is preferred for Scotch cocktails. The harsher tones of single-malts are dampened by blending them with grain whiskies in a cask for several months after each has been aged separately. Scotch blends are an art and each Scotch house has it's own secret recipe. While exact blends are unknown it is typical for 20-25 whiskies to be used in a blend with around 20-50% of those comprised of single malt whiskies. The higher end blended Scotch will have more single malt which leads to a deeper flavor. Blending Scotch is an art and some brands (i.e. Compass Box) focus on this.
More about Whiskey: