Bourbon is non-vegan too. It's Kentucky, hillbilly country, so of course they still use animal labor to farm their corn & grain fields that go into the whiskey.
Many tequilas also contain animal glycerin… (even 100% agave) And it’s also becoming more common for distillers to experiment with whey as the base for spirits such as vodka & gin.
Total BS! Chemically alcohol is soluble and penetrates organic compounds. Break some eggs and separate out the whites, pour alcohol in and try to filter the mess you just made. I am pretty sure these guys never took Organic Chemistry at nearby University of Florida 😊. Eggs are expensive as well!