Color is 500 deg L +/- 25. Flavor can be slight to smokey. Black malt can be used in both ales and lagers to add a touch of color in light beers or to add a dark rich color in porters and stouts.
Black malt can impart color and, when used in large quantities, an almost acrid flavor characteristic of stouts and porters. To slightly increase color in light beers, try adding 1/2-1 oz per 5 gallon batch. In darker beers, try 5 oz's per 5 gallons of beer. For porters and stouts, 1-10% of the total grist may be black malt.