You know how to clean your grids, the ones that you grill on all the time. Or do you? The following video provides tips and tricks on cleaning the cooking grids on your grill. One of the most important tools for grill maintenance is a soft brass wire brush. It is the most effective way to maintain your stainless steel cooking grids. Preheat the grill to 400°-500°F and then use the brush to remove any leftover food particles.