The Mongrel King (10.2%) 375mL can. Blended Barrel-aged Sour. We took a blend of our Barrel-aged Stouts & inoculated with our King Of Denmark Stock Ale yeast from Harvey's Brewery in the UK & further barrel-aged for 2 years. The resulting beer is a complex dark sour with good acidity. All natural ingredients: Water, Barley, Wheat, Oats, Rye, Molasses, Hops & Yeast.