
Distilling beer into whiskey~
In a very basic sense, whiskey is distilled beer. In fact, the fermented mash slated for distillation is sometimes called "distiller's beer" — not that you'd want to drink it. But whiskey can be produced from finished beer.
Whiskey made from otherwise drinkable beer is still relatively rare: Producing commercial beer only to distill it down is an additional time-consuming step and added expense. But it does happen.