A clean grill is needed to cook delicate meats like seafood or chicken. A clean grill makes fabulous grill marks on the meat. Your guests will appreciate seeing a clean cooking surfacet. Clean the grill after EACH use. A wire brush is all it takes. Turn the grill up high to get the surface nice and hot. Give the grill a scrubbing up and down the grill bars. The crud will come of easily when heated and dried out.