Nebbiolo Grappa Riserve is matured in wooden casks for some years and then it is refined in Spanish barrels for some months. These barrels had been previously used to maturing a Sherry of one of the most prestigious wineries. This particulary kind of passage, already tried for whiskey, and experimented by Sibona Distillery on grappa, has proven to be exceptional as regards to quality results. Its particular and intense bouquet and unique flavour, involving and elegant with a mellow aftertaste, recall those of Sherry.