You cannot scrape it off nor cook it off as it will not vaporize into dust with the high heat.
How to remove stuck on aluminum foil off over floor.
You may want to remove this bottom panel and see if using a stiff scrub brush will loosen the foil.
Once the oven has cooled off you can gently peel and remove the foil pieces.
You can open windows and turn on kitchen fans to circulate the air.
If you still have foil remnants on the oven use the duct tape method.
Turn on the oven at 200 degrees f close the door and wait 30 minutes.
I hate to say you may need a new panel on the bottom of the oven.
They are removable some are fastened with screws most simply lift and pull out.
Fold the towel and lay it over the foil area.
The water will produce steam causing the foil to loosen and become unstuck.
Turn on the oven at 200 degrees f close the door and wait 30 minutes.
Once all the aluminum is gone scrub it with soap and water and rinse again.
Fold the towel and lay it over the foil area.
The water on the towel will turn to steam that will cause the foil to release from the oven floor.
The metals present in the foil must have already been infused with the floor of the oven.
Rinse this stuff off with water into a bucket dump the bucket into your toilet and flush it down the drain.
They should come off relatively easily.
I lined the bottom of my oven with aluminum foil with the intention of catching drips etc.
To make clean up easier.
Now wipe off the liquid and scrub with some baking soda and steel wool.
Allow the oven to completely cool off then begin by removing any aluminum foil stuck to the bottom of the oven with a razor.
Wait for the oven to cool then carefully peel off the pieces of foil.
You may need to repeat this a few times.
I found out afterwards that this is something that should not be done since the aluminum will melt and fuse on to the surface of the bottom of the oven.
The water on the towel will turn to steam that will cause the foil to release from the oven floor.
Hence i should caution you against using the self cleaning method after the foil has already melted on the oven.
Make sure the area is well ventilated.
You ll also see the liquid turn silvery that s the aluminum foil going into solution.
Wait for the oven to cool then carefully peel off the pieces of foil.
Turn the oven to 200 degrees fahrenheit for 30 minutes and close the oven door.