When: June 14
National Bourbon Day on June 14th celebrates America's native spirit — a corn-heavy whiskey aged in new charred oak that developed in the American frontier and became one of the world's most recognized spirits. Bourbon's legal definition is precise, its flavor chemistry is fascinating, and the Kentucky terroir debate is genuinely interesting.
Bourbon must be made in the United States — not necessarily in Kentucky. The legal requirements say nothing about location beyond "USA," making bourbon from New York, Texas, or Japan technically impossible to call bourbon.
Bourbon County, Kentucky was named for the French royal House of Bourbon in 1785 — a gesture of gratitude for France's support during the American Revolution. The Scots-Irish immigrants who settled the region in the late 18th century brought whiskey-making traditions from the old country, but found barley scarce and corn abundant. What they made from corn, distilled in the limestone-filtered spring water of the Bluegrass region, was something the old country had never produced. The limestone geology is not incidental. Kentucky's bedrock filters iron from the water before it reaches the surface, and iron discolors and off-flavors whiskey. The same limestone shelf that makes Kentucky water ideal for bourbon also feeds the bluegrass that Thoroughbred horses graze. It is, as the distillers say, a fortunate coincidence of geology. Bourbon's legal identity was codified in 1964, when Congress declared it a "distinctive product of the United States." The definition is specific: at least 51%...