Black Dry Malt Extract (Maltoferm A-6000) is 100% pure malted barley extract extract made from 100% malt and water. Almost black in color, it is well suited as a colorant for beer. Depending on amount added it may also impart roasted flavors to beer. For color adjustment use .25 – 1 oz. per 5 gallons. If being used for BBL than 1.5 oz. will increase Lovibond by 1. May be added be added in post fermentation/pre-filtration to finished beer for minor to major color adjustment.