The Riserva Speciale Bitter Liqueur, as the name suggests, is a bitter liqueur that has been crafted to be the perfect complement to the Vermouth di Torino in a Negroni cocktail. It undergoes a process of resting in the same Tino casks used for the vermouth, which imparts a unique complexity to its flavor profile.
During the resting period, the bitter liqueur absorbs the flavors and nuances present in the wood, resulting in a richer and more rounded taste. This process allows the bitter notes to mellow and integrate with other ingredients, creating a harmonious balance of flavors.
In my personal experience as a sommelier and brewer, I have found that the resting process in Tino casks can greatly enhance the overall flavor profile of a spirit or liqueur. The wood imparts subtle nuances and adds depth to the final product, creating a more complex and enjoyable drinking experience.