Blended Whisky: Blended by malt whiskies and grain whiskies, it is the base of the whisky industry. Take Scotland as an example, about 90% of whisky export is blended whisky. The famous Johnnie Walker Blue Label is a masterpiece of blending. Only one in every ten thousand casks has the elusive quality, character and flavour to deliver the’ remarkable signature taste of Johnnie Walker Blue Label.

Single Malt Whisky: Blended by malt whiskies produced at one single distillery. Owning 28 malt distilleries, Diageo is the largest company with most single malt whisky brands, including The Singleton, Mortlach and Talisker. Among them, The Singleton of Glen Ord insists on long fermentation and slow distillation for longer maturation. Its unique mellow and smooth texture brings it awards and credits from all over the world.

Blended Malt Whisky: Blended by malt whiskies from different distilleries, relatively rare. Johnnie Walker Green Label is a representative of this kind. Some old whiskies labelled ‘Pure Malt’ are actually blended malt whisky, but the term ‘Pure Malt’ is prohibited now.

Single Grain Whisky: Grain whisky produced at one single distillery. Mixing grains for fermentation and distillation. A point to note is that, if a distillery can produce both malt whiskies and grain whiskies with blending and bottling, their whiskies would be categorised as Blended Whisky. Among the Special Release series of Diageo, Carsebridge and Port Dundas are both rare old Single Grain Whisky.

Single Cask Whisky: Whisky matured in single cask directly bottled without blending and and directly bottled without dilution to adjust ABV. Since every cask has different flavour, which means every bottle of single cask whisky is one of a kind. It has been largely welcomed in Asia recently. Diageo’s Casks of Distinction is a single cask series hand selected by a team of whisky experts under guidance from Master Blender Dr. Craig Wilson, each cask is entirely unique and incredibly rare.

Cask Strength: A kind of whisky bottled right after blending, no water is added for diluting to ensure the original alcoholic strength. An example is Diageo’s Special Release Series.