Nebbiolo Grappa Riserve is matured in wooden casks for some years & 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, & experimented by Sibona Distillery on grappa, has proven to be exceptional as regards to quality results. Its particular & intense bouquet & unique flavour, involving & elegant with a mellow aftertaste, recall those of Sherry.