The Brander 3-Sided Brass Grill Brush is truly one of our favourites. This handy guy is equipped with brass bristles - this makes it perfect for handling the mess on cast iron cooking grids. Why? Well, the bristles aren't as harsh as stainless steel bristles, thus the brass will not harm your porcelain coated cast iron.
But, we know what you're thinking - "I heard about that one story with the bristles and..." - stop right there! The bristles in this guy are intertwined within the steel (as seen in the picture). Because of this, they are destined to stay in the brush.
Truthfully, if you're still worried about bristles, then wipe your cooking grids down with some oil on a paper towel - this will eliminate any concerns for bristles while also making your cooking grids non-stick. Because knowledge is power!