When River North Brewery founder Matt Hess first discovered amburana wood, he immediately wanted to use it in a recipe. The wood, which comes from trees native to South America, offers a distinct profile with spicy notes of cinnamon. Hess thought it would aptly complement one of the brewery’s signature high-alcohol beers. After receiving some amburana samples, Hess’ team made an imperial saison aged on amburana wood spirals.