From my experience, no. We used to use hard steel srapers and steelos. At one of the restaurants I worked at, we actually had a tank of caustic that we'd soak

From my experience, no. We used to use hard steel srapers and steelos. At one of the restaurants I worked at, we actually had a tank of caustic that we'd soak the grills in overnight twice a week, cleaned them up to like new. Of course, the caustic tank had it's own host of health and safety issues, but that was a staff concern, not a customer concern. That shit was nasty.