Whisky The Glenallachie 15 Year Old. Almost four years since we formed the Glenallachie Distillers Company, bringing the distillery back into private ownership, we released the very special expression as an extension of our core range. Our Master Distiller, Billy Walker, has worked tirelessly on perfecting this expression since day one; evaluating casks and refining recipes to create something special. We’re proud to present the jewel in our crown; the Glenallachie 15 year old. The Glenallachie 15 Year Old is bottled at 46%, non chill filtered and natural colour.