It's been a dizzying week for Jason Barrett. Not long ago, the president and master distiller at Black Button Distilling was preparing for a nationwide product launch of his bourbon, gin, and vodka. But his distillery on Railroad Street is now pumping out a product that stores and distributors can't keep on the shelves. On Monday, Barrett learned that operations like his could be used to manufacture ethanol-based hand sanitizer, a vital weapon on the front lines of the battle against coronavirus