Petrus Aged Red is constructed from a base of Double Brown Ale. 15% Petrus Aged Pale is added to provide a dry character to the brew and give it a slight sour essence. Finally the brewer adds fresh cherries, which are evident in the rich thick head. Petrus Aged Red is a perfect blend of sweet and sour with a cherry undertone which makes this brew remarkably drinkable at 8.5% ABV.