Petrus Aged Pale, from Brouwerij Bavik, is a 7.3 % ABV Belgian sour aged in oak casks. It pours on the orange side of straw, with a fizzy head which rapidly disappears. It resembles an Oud Bruin, but lighter, both in color and on the palate. It is indeed sour, but very pleasantly so, with a solid malt base that smooths things out. There are notes of apricot, and a very prominent, delicious oak finish. This came highly recommended, and it is certainly very drinkable, and would probably make a good introduction to sour brews.