You Order a Whiskey on the Rocks at the Bar

You order a whiskey on the rocks at the bar of your favorite restaurant. The new bartender there asks you what type of whiskey you would prefer. Your friend asks you about the differences among all of the following selections. Show off your food science knowledge and compare and contrast the following options: bourbon, Canadian, Irish, rye, and Scotch. Begin by first explaining what whiskey is and how it is made.