John Walker & Sons XR 21 is crafted using an extremely rare three-stage blending method reserved from our most exclusive whiskies, all aged at least 21 years. Johnnie Walker with one of its exclusive blends John Walker & Sons XR 21, symbolising the rich heritage and legacy that John Walker passed on to his successors since 1820. The exceptional blend, containing whiskies aged for a minimum of 21 years, including some from the now silent distillery Port Dundas, built in 1811 at the highest point in the city of Glasgow. Taste: Citrus zest, ripened tropical fruits and caramel swirl within hints of tobacco and raisins. The long, smooth, soothing finish is complex and fascinating - a myriad of influences played out over a subtle tapestry of peatiness. Aroma: Sweet honey and tempered spices come cloaked in warming smoke.