I clean mine in the laundry sink, with an SOS pad.

Leave them in the oven on the self cleaning cycle or leave a bowl of ammonia in the oven overnight or like above.

If you don't have a self cleaning oven you can wrap them in ammonia soaked paper towel then foil. Leave them outside over night. They'll stink. The next day they will clean easily.

Ditto the idea to use ammonia.

I had an oven that was not self cleaning. I put the oven racks in a set tub with ammonia, left them there overnight and in the morning the baked on stuff practically fell off.

Although I do have a self-cleaning oven, I don't leave the racks in when I run it as the racks won't run smoothly along the tracks once cleaned that way.

hatetoshop, I've never thought of that. I'm getting my first self cleaning oven soon thanks for the tip.

I have never had that problem

its only been a problem the first time i use the oven after the clean cycle... then the mist of grease re-lubricates the tracks. i decided having sparkling smooth sliding oven racks goes in the 'things i dont care enough about' category.

Pretty sure my oven's self cleaning directions say to remove the racks first, so check your manual before doing this. I've never left them in when running a self cleaning cycle. I also don't worry that much about them being sparkling clean beyond sponging them off. Mine never seem that bad.