Whiskey or Whisky? The Spirit of Bourbon in Kentucky "HIGHLAND HEIGHTS, KY" (WNKU) - Kentucky produces ninety-eight percent of the world's bourbon. But, do you know the difference betwen bourbon and scotch, or canadian whiskey? Food historian and author of the book "Bourbon: A Kentucky Tradition" Mark Sohn spoke with WNKU's Matt Kelley about the intricacies of the commonwealth's signature drink. © Copyright 2009, WNKU