GlenAllachie 15 Year OldAlmost five years since they formed the GlenAllachie Distillers Company, bringing the distillery back into private ownership, GlenAllachie released the very special expression as an extension of their core range. Master Distiller, Billy Walker, has worked tirelessly on perfecting this expression since day one; evaluating casks and refining recipes to create something The GlenAllachie 15 Year Old is bottled at 46%, non chill filtered and natural