ocr: Dark Beer Permentation Time 5-15 days Permentation Temp. #5°-35°F AlcOnolc Content 3.0-508by weight Color (ue) Brown A dark lager beer is brewed in a similar process as light lagers, but the beer is brewed with a roasted barley malt. Some breweries cut corners on their dark beer and add roast barley malt extract, or worse, caramel coloring. These dark lagers are generally a deep brown color with the sweet taste associated with dark malt.