The wash that goes into a whiskey still is sometimes called distiller’s beer , but this un-hopped fermented liquid tastes nothing like your favorite IPA. Now though, some craft whiskey producers are distilling the same craft beers you could buy off the shelf, with tasty results. “The overarching philosophy behind it is if you have a good product going in, you have a good product going out,” says Clint Potter, cofounder of San Francisco’s Seven Stills Brewery & Distillery .
At Berkshire Mountain Distillers in Massachusetts, founder and distiller Chris Weld finds fodder across the panorama of American craft beer—everything...