Scotch Single Malt is thought to be the finest Scotch Whisky out there. While that's debatable, one thing's for sure: this Scotch only uses one type of grain.
But there are other rules when it comes to making it, such as using malted barley from a single distillery and aging it in oak barrels for at least three years. Sticklers for rules, those Scotch. And our drams are all the better for it.