Handmade. Any time you're in the neighborhood, stop by and visit us at our distillery, near Loretto, Kentucky. This beautifully restored home of Maker's Mark is a designated Kentucky and National Historic Landmark. Maker's Mark is America's only handmade bourbon whisky - never mass produced. Each individual batch is less than 19 barrels, and this small quantity means we can be choosy about everything we use and everything we do to craft our whisky. That's why we use the old-style sour-mash method. We start each new batch fermentation by using a little of the last, resulting in a more consistent product. We're proud of our unique and full-flavored handmade bourbon, and so we add our Maker's Mark S IV to each bottle. Enjoy. Fully matured alcohol 45% by volume (ninety proof).