The Grillbot Stainless Steel Brushes are the best choice for expanded steel or cast iron grills. The best surface for outdoor cooking is cast iron because it retains the heat better than any other grill surface. Cast iron grills are higher maintenance than the others surfaces. The steel brushes are a better choice for the expanded steel or cast iron grills because the bristles can enter the tiny holes within the cast iron. This will allow for a better cleaning of the cast iron surface.

If you're not sure what kind of brushes you should have for your Grillbot, here is the answer. The Grillbot robot comes standard with the brass brushes. If you don’t know what kind of brushes you need, don’t worry. This is to inform you so that you may pick the precise brushes for you to obtain the best results for your grill. Grillbot has 2 kinds of brushes to select, stainless steel, or brass brushes. The Stainless Steel Brushes are to be used for expanded steel or cast iron grills.  The Brass Brushes are to be used for porcelain or stainless steel grills.