Flying Dog and BrewDog International Arms Race

Billed as a combative collaboration between Flying Dog and BrewDog, this new “Zero IBU IPA,” or gruit, is brewed with a range of interesting ingredients (but no hops), including spearmint, bay leaves, rosemary, juniper berries and elderflower. After coming up with the idea, each brewery brewed its own version and now you can taste them side-by-side.