Gooderham and Worts Four Grain Whisky is a blended whisky, based on the historical style of the original. The four grain expression contains corn, barley, rye and wheat, all distilled separately in a combination of pot and column stills. The components are then aged in both virgin oak and ex-bourbon barrels before blending. The final blend is bottled at 44.4%, a higher proof than is typical of Canadian whisky, to emphasize the woodier characteristics.