Whisky Glenfiddich Perpetual Collection Vat 1. Vat 1 is an exceptionally elegant single malt, suited to every palate. Ever in motion thanks to continuous blending in our Solera Vat 1, this expression uniquely layers sweet and spicy notes for a soft and mellow taste with added depth due to its maturation in bourbon & red wine casks. A balanced and refreshingly smooth Glenfiddich.