After dilstillation, the eau-de-vie is aged for 20-25 years in small 10-liter barrels that have been treated with boursinage crocodile (“alligator char”), a particular process of heavily burning the inside of the barrel to catalyze key chemical changes in the wood. These smaller barrels increase the surface area contact between the cognac and the wood, which accelerates the aging process. This method allows the cognac to absorb more complex oak flavors and tannins in a shorter period, compared to traditional larger barrels. The use of these microbarriques also facilitates a more controlled oxidation process, enhancing the development of richer, deeper flavors and a more concentrated profile.