There is a story behind every bottle of American, and What Is Sour Mash Whiskey? carries one worth telling.
Almost all American bourbon and Tennessee whiskey is made using the sour mash technique, which uses backset to regulate mash pH.
Final Reflections
What Is Sour Mash Whiskey? is the kind of bottle that rewards the curious — those willing to sit with a glass and let the story unfold at its own pace.