An authentic smooth and full-bodied dark lager with a touch of sweetness . The subtle malty tones and hint of chocolate offer so much more than a standard lager. Köstritzer Black Lager is a characterful, smooth, full-bodied dark lager. It’s much more complex than a standard lager, with subtle tones of malt and chocolate. Interesting and unique, it’s brewed at one of Germany’s oldest breweries in Bad Köstritz, which dates back to 1543.