The vast majority of whisky drunk around the world is Blended Scotch Whisky. There are two types of whisky made in Scotland. Malt whisky is made from malted barley and distilled in pot stills. Grain whisky is made from other grains such as corn, wheat and rye, and distilled on a continuous still, sometimes called a coffey or patent still.
Blended whisky is a “blend” of the two. The malt gives the big flavour and the lighter, consistent, cheaper grain whisky gives bulk.