Clean stove wire racks

Brillo Pads........

Lay them on newspaper in the garage & spray them with oven cleaner. Let set & then wash them.

Buy spray oven cleaner, take the wires outside and spray the down. Let them sit all night, and scrub off the next day. Re-apply if needed. You can buy non aromatic spray and do it in the bathtub/shower if you prefer.

Put them in the oven on clean cycle

I take them outside, put them in the sun on top of newspaper and spray both sides with Easy Off. Let set, and if real dirty give them a second spray. Then I put each one in the sink and scrub it with a Brillo pad.