America's First Trappist Beer. Our recipe was inspired by the traditional refectory ales known as patersbier (“fathers’ beer” in Flemish) in Belgium. These sessionable beers are brewed by the monks for their dinner table and are typically only available at the monastery. Spencer is a full-bodied, golden-hued ale with fruity accents, a dry finish and light hop bitterness. The beer is unfiltered and unpasteurized, preserving live yeast that naturally carbonates the beer in the bottle and keg and contributes to the beer flavor and aroma.