Bronckhorster Barrel Aged Serie No. 39 is an amber-hued tripel from Bronckhorster Brewing Company in Rha, Gelderland. This robust 12% ABV beer has matured in bourbon barrels, layering the tropical and fruity character typical of a tripel with warm oak and vanilla notes from the wood aging.

Bronckhorster's Barrel Aged Series is recognized for experimental cask maturation across different barrel types. No. 39 is part of a numbered collection where each release represents a unique barrel expression, making these beers sought-after by enthusiasts of fermented and aged craft beer.