 The spirit is finally married together in an upstanding sherry butt, allowing the flavors to infuse.Matured initially in American white oak ex-bourbon casks and 30 year old Matusalem oloroso sherry butts, it is then transferred into Cru Cabernet Sauvignon wine barriques.Matured initially for 14 years in American white oak ex-bourbon casks, the spirit is then transferred to 30 year old Matusalem oloroso sherry butts for a further four years.