I have been toying with Porter and Stout Recipes and was thinking about the fact my LHBS only carries mostly domestic malts. I have asked for Black Patent and was pointed to the Black malt. I know there is a difference in color and taste but struggle with what terminology to help me explain the difference. Black Malt has more chocolatey flavor and Black Patent is more astringent? It's a great shop with good help but... I order my German malts online for my Oktoberfest, I can't expect them to carry every malt under the sun. I considered Black Patent to be a malt of its own, no comparables. Am I wrong or can it be changed out without changing the recipe?