Another option is a self cleaning oven. They work great for cleaning cast iron smoker and grill grates.
As for me, as soon as the grates (mine are chromed steel) are cool enough to touch I clean them and then store them in the kitchen cabinet devoted to outdoor cooking!
As for me, as soon as the grates (mine are chromed steel) are cool enough to touch I clean them and then store them in the kitchen cabinet devoted to outdoor cooking!