150 years ago, Jacob and Frederick Beringer were pioneers of a new age, making their way across the frontier to plant their first vines in Napa Valley. The winery continues to remain true to their bold, pioneering spirit with Beringer Bros. Bourbon Barrel Aged Wines. The latest varietals are aged for sixty days in charred, American oak bourbon barrels. The result: a uniquely rich, warm, and bold flavor. Beringer Bros Bourbon Barrel Aged Cabernet Sauvignon is bursting with aromas of ripe black cherry, dark chocolate, and vanilla. The palate is lush with ripe tannins and and integrated acidity, showcasing toasted hazelnuts, toffee, and blackberry preserves on the finish.