Nulu Experimental Series Tawny Port Barrel Finish – Nulu Experimental Bourbon Finished in Tawny Port Barrels is our latest craft bourbon innovation. We are taking barrels of straight bourbon whiskey, and putting them into various wine, brandy, and cognac barrels for months at a time. This process is allowing us to bring you bourbons that have flavors and aromas that are complex and intriguing. Nulu Tawny Port Brandy Barrel Finished Bourbon is aged for 6 months in Tawny Port casks, which imparts toasted wood, spice, and tropical fruit flavors. The full-bodied texture is supported by caramel and sweetness from corn. The alternative aging process finishes out with a long warming glow.