If you wander into your local watering hole and ask the barkeep for a pour of whiskey — without adding any specifics — you’re almost guaranteed to get something that was brought to bottle in either Scotland, the U.S., Ireland, or Canada. These are the top-producing nations of the spirit, in order. And for centuries, they have accounted for the overwhelming majority of whiskey consumed across the planet. But in recent years, that stronghold has shown signs of slippage. Beginning in earne...
