Aside from our recent experimentation with the Gose style (a tart wheat ale), we haven’t really dabbled with sour beers as part of our Scratch Beer Series. We’ll, that’s about to change with the release of Scratch #197, a sour Belgian-style Dubbel brewed with fresh blackberries. The addition of blackberries adds another dimension to the flavor of this ale by peppering hints of rose, cedar, mint, and mild clove with the dominant toffee and stone fruit flavors of the base beer. Dark Belgian Candi and Demerara sugars (the latter, an unrefined, large-grain golden sugar) bolsters the ale’s sweetness. Throwing caution to the wind, we decided to introduce lactobacillus into the fold. This process produces lactic acid, which imparts a subtle mustiness and soft, pleasant tartness (think Sour Patch Kids candy). It’s time to get your “bramble” on!