Independent purveyors Jacob & Frederick Beringer. Since 1876. Aged 60 days. Vinted, bottled and cellared by the oldest continuously operating winery in the valley. Guaranteed to stay red in the bottle. Beringer brothers of California. mark Beringer -5th generation winemaker. Beringer Bros. honors the roots planted by two pioneering men after a westward journey across a young America. Their legacy lives on in the hands of fifth generation winemaker, Mark Beringer. Aged 60 days in American Oak Bourbon barrels, toasted coconut and dark caramel, with a smoky finish.