The Cuisinart Brisk Brush Prodessional cleans grills cold and cleans grills fast. It features nylon bristles designed to use once your grill has cooled. They will go to task cleaning up grill grime and are safe to use on all types of grill grates. The bristles are firmly rooted in the brush, but sometimes during normal grilling bristles can dislodge. In the event that occurs, our red bristles are easy to spot for added safety.