When it comes to appreciating different levels of Hennessy, having a discerning palate and an understanding of the nuances is essential. Just like with vodka, each level of Hennessy offers a unique tasting experience. To appreciate these differences, start by understanding the aging process. Hennessy is aged in oak barrels, which imparts distinct flavors and aromas. The longer the aging process, the more complex and refined the Hennessy becomes.