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How do you remove melted tin foil from the bottom of the oven

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To all those who think this problem description couldn't be true, you're wrong. You're right that the aluminum did not get hot enough to melt though.....What happens is that the non-stick teflon coating they put on the aluminum get's too hot and bonds with the oven bottom.... like a crazy epoxy!

Furthermore, this isn't a problem in older, conventional-type ovens... this is moreso a problem with ovens that have a hidden bottom element.... The bottom element is actually directly below the oven bottom, and lining the oven bottom with foil is basically like putting it directly on the element. And that part gets extremely HOT!!!

Thankfully I've got the solution to this! But it takes some extreme patience, a lot of respect for what you're working with and some good ventilation.

I went back to my high school chemistry class to get the answer. It's Lye, aka Caustic Soda aka, Sodium Hydroxide.

I used Drano Kitchen Crystals off the shelf of the grocery store..it's about 70% lye with some added salts to aid the chemical reaction.

You'll need some plasticene, the drano, water, GLOVES!!, a lot of paper towels and wood skewers and GOOD VENTILATION.

Start the ventilation and open a window or door.
Put on your gloves.
Use the plasticene to create a dam about .25"-.5" high around the area in the oven you're looking to remove the aluminum from... the area's you're working in should be about 2.5" in diameter.
Pour in some of the drano into the dam and add enough water to touch all the sides of the dam......if the chemical reaction hasn't started (should be almost instant) keep adding the drano bit by bit until it does... the dam contents will start to boil and ammonia fumes and a little hydrogen gas will form....... hence the need for some good ventilation!!
Once the reaction is done, poke around with the wood skewer to see if the oven bottom is clear... if you're satisfied with the results, add some some vinegar in to help neutralize the solution a bit.... then use the wood skewer to remove the plasticene dam to a dish to be rinsed off ASAP.
Use paper towels to wipe up the mess on the bottom of the oven.... See your results! the area of the oven botton you treated should be free of aluminum and just be discoloured instead..... not from the drano, but from where the teflon bonded.
Repeat the process until the oven bottom is clean.

To get a 'feel' for the chemical reaction and what to expect, experiment first!... take a square of aluminum foil, go to the backyard with the foil shaped in a littlebowl and place it on a dish or pan, add some drano crystals to it then add a little water... step back from the dish and try not to breath the fumes!.. the dish will be hot!!

It took me about 6 hr to clean the bottom of my oven when this happened to me.

Hopefully this helps some other poor unfortunate souls who finds themselves in this situation!

Posted on Jan 20, 2010

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Did you get an answer? We have the same problem.
mrcloserock@gmail.com

Posted on Nov 27, 2009

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1 Answer

Tin foil stuck to bottom of oven how to remove it


See this link: http://askruth.blogspot.com/2006/07/cleaning-baked-on-foil-in-oven-help.html

"I called Sears and this is what they said to do:

BE CAREFUL, remove as much of the foil as possible Turn oven on to 200 lay an old wet bath towel on top. Use a plastic spatular to remove the foil.

They said it will take some time to remove the foil, in some cases days, and that you can still use the oven but DO NOT use the self cleaning untill all the foil is removed."

If you can remove the bottom drip tray/pan from your oven which the tinfoil is stuck to, than remove it. Ovens with "hidden element" usually have the removable bottom tray/pan. Don't scrape yet!!
Lay the tinfoil laden tray on a flat service where it wont be disturbed for a couple of days.
Now remove any tinfoil you can with a plastic scraper/spatula/pancake flipper.
Once thats done, pour bleach directly onto the drip tray/pan until it covers all the stuck tinfoil.(assuming your oven pan is like mine and has a lip all the way around and is somewhat countersunk).
Leave the bleach in for about 2 days. Now get your plastic scraper again and scrape away. The stuck tinfoil should all be dissolved by the bleach and the scraper should get rid of any residue. Then rinse!
Now this method will probably leave some darkened stains on the oven tray, but not near as ugly or noticeable as that melted tinfoil!!

Good luck!!

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1 Answer

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Melted Tin Foil in bottom of oven


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hi floppy,

if you can't scrape most of it off with a plastic scraper, you may have to buy a new bottom pan. if you can get most of it off it should be ok to use. also if you have propane gas make sure your stove was converted properly.

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Melted Tin Foil in bottom of oven


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