Is stainless steel grilling grid a good surface?

Answer 1

I like stainless because you can keep the grill very clean quite easily, which works better for the weekend cook, and it's smooth and doesn't trap particles.. Cast iron has a lot of porosity, which traps a little fat in the grill itself and makes for a better non-stick surface. The problem here is that you need to remove the ash from the grill as cast iron will corrode more easily, and that if you don't use the grill a lot, the tiny trapped fat particles can turn rancid. This is the same principle one uses when you "season" a ferrous pan.