The anCnoc 18 Year Old is a testament to the art of whisky aging, having spent its years maturing in both Spanish oak casks that previously held sherry and American oak barrels once filled with bourbon. This carefully chosen combination of casks brings a unique and rich flavor profile to the whisky. Faithful to its natural form, the anCnoc 18-Year-Old has been bottled without chill-filtering or artificial coloring. Consequently, if water is added or the whisky is kept at a colder temperature, a light haze might form - a completely natural occurrence in this unadulterated spirit.