Carlisle Foodservice. Molded into-the-handle hook hangs on lip of crocks or other containers to prevent bristle burn, melt, or distortion from resting against hot pan bottoms . Hook elevates bristles off of counter tops to keep bristles clean and to help prevent contamination . Double-boiled, bleached, sterilized premium Boar bristles . Bristles are molded into handle to prevent bacteria harboring air pockets.