Planning on brewing a RIS and was considering adding the roasted barley, chocolate malt, and special B to my 10 minute 168-170F mashout after conversion with the rest of my grains in hopes of reducing some astringency from the dark roasted grains. Anyone have any experience with this and if so, did you enjoy the results?
My main concern is with finished color in the beer? Will steeping the grains for a 10 minute mashout and short recirculation be enough to extract the necessary color required for this beer vs. a full 60 minute mash with ALL of the grains together?