Plus, there's a lot of precedent for using castoreum in food and perfume.
"I have always been intrigued by the use of castoreum in food and luxury products," said Steven Grasse, head distiller of Tamworth Distilling and Mercantile. "There was a time when it was ubiquitous and used widely as a flavoring agent and in perfume. In fact, it’s still used in a number of products today and considered by the F.D.A. to be a 'Natural Flavoring.' I was curious what would it taste like in one of our unreleased bourbons from Tamworth Distilling -- so we tried it, and it worked beautifully."
According to a press release, "it exudes a leathery, raspberry taste, and acts to fortify the whiskey flavors."
But ti won't be around forever: Eau de Musc is a limited-edition release that comes in a 200ml vintage-style perfume bottle that you can pick up for $65 from Warehouse Wines and Spirits. Even if this isn't the thing that convinces you to love whiskey, we're pretty sure you've never had anything quite like it.