The basket occasionally went in the dishwasher which cleaned the surface, but the well gunked grease has been building up.
Tried soaking the basket in soap and hot water. Scrubbing with a soft sponge. And then running the dishwasher multiple times but it only got a small part of the grease out.
I do this with ours. Spray it and let sit for at least half an hour in the sink. Hose off the caustic with hot water, then nylon brush the residue.
Wear eye protection if truly hosing. You don’t want that shit in your eye.