How to remove white cloudy stain on glass stovetop

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Old 10-13-20, 06:22 PM
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How to remove white cloudy stain on glass stovetop

Water boiled over, I wiped it with a microfiber cloth while hot and it left a stain. when cooled, I tried to remove the stain with barkeepers friend and a white, foggy shadow was left behind. have tried everything from cerama bryte to baking soda with no luck... any ideas on how to remove?
 
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Old 10-13-20, 06:38 PM
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Welcome to the forums.

You want to avoid abrasive cleaners as they will scratch the surface.
There are several home remedies for cleaning a ceramic top.
Most involve white vinegar and baking soda.

One popular method is to spray the cooktop down with white vinegar.
Sprinkle baking powder liberally over the vinegar.
Lay a hot wet towel or rag over the mixture.
Wait 15-20 minutes and wipe off with a damp rag.
You can wipe again with white vinegar if there is still a haze.
If it appears to help...... you can try it again.

If that fails there are always commercial cleaners. Cerama Bryte is one.
Cerama Bryte cooktop cleaner
Cerama Bryte video
 
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Old 10-13-20, 06:41 PM
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thanks... like I said, I've tried all of these options with no luck. any thoughts on what else I should try?
 
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Old 10-13-20, 06:44 PM
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I was just reading something on a GE tech site. It did not recommend baking soda.
Just try straight white vinegar.

Soak it well..... let it sit there. Vinegar is a natural acid.
 
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Old 10-13-20, 06:53 PM
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Not familiar with glass stovetops but I like glass cleaners (like Glass Plus) or vinegar for glass.
 
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Old 10-13-20, 06:55 PM
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Another thing you could try is a tub and tile cleaner.
 
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Old 10-13-20, 07:34 PM
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yeah... thanks. I've tried just about everything I can think of and what I found on Google. when I wipe it with a wet rag it disappears until it dries then comes back. it's the weirdest thing.

I also tried a scraper, mother's rubbing compound and there's been no change whatsoever.
 
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Old 10-14-20, 04:26 AM
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Do not use rubbing compound for routine cleaning. That is abrasive.

In addition, lye (sodium hydroxide) found in many drain cleaners will etch the surface of glass giving something similar to what you described.

OT: Buffing a car will sooner or later take the paint off down to the primer if not down to the bare metal. Even using ordinary car polish, when you see the sponge or rag colored the same way as the car, that is evidence that some paint has been removed from the car in order to give the rag that color..
 
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Old 10-14-20, 05:52 AM
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Sounds like you have tried everything.

Give the top a light coating of vegetable oil and let it sit for a few hours then wipe it off.
Basically you are trying to simulate the wet look.
 
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Old 10-14-20, 08:06 AM
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Have you contacted the manufacturer of the stove? They might have a suggestion or even a product to send you.
 
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Old 10-14-20, 08:58 AM
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Use a razor blade flat on surface. get one with a handle on it (Sold at all hardware stores.) don't sig in with blade as that will scratch surface. Wife hates when I do this but repaired appliances for many years and one of the way we cleaned them,
 
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Old 10-14-20, 09:40 AM
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I've also got a glass cook top. I also find the razor blade works.

My routine is
1) turn the element off, pull the dial off so nobody can accidentally turn on the element.
2) cover with a wet paper towel, use a house plant "drip watering" bottle to keep it damp
3) leave over night
4) Scrape with a wide, flat, sharp blade that's almost parallel to the cooktop. I've used both razorblades in holders, but also found that the blade of our meat cleaver works nicely as well.
 
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Old 10-14-20, 10:03 AM
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Here's the process.
https://drive.google.com/file/d/1hHT...ew?usp=sharing

Here's the result-
 

Last edited by Hal_S; 10-14-20 at 10:22 AM.
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Old 10-14-20, 10:53 AM
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Thanks! But there really is nothing to scrape off as when I run my hand over the stain it's as smooth as the rest of the surface.
 
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Old 10-14-20, 11:29 AM
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there really is nothing to scrape off as when I run my hand over the stain it's as smooth as the rest of the surface.
I know- it's too thin to feel. After somebody else had something boil over, then scrubbed away at the cook top, I notice that I could no longer see the "burner circle" that is in the glass; at first I was convinced that they'd used an abrasive and sanded down into the glass. It wasn't until I used a razorblade scraper and found an "edge" that I realized that there was an very thin stain over the entire burner, and the "depression" I was feeling was simply where the stain was partially removed.

Ever made candy by putting sugar in the microwave until the heat turns it into glassy "hard crack" sugar? This is basically the same thing, so you end up with a VERY thin layer on the glass, like powder coating, or enamel.
Sugar, starch, protein and polyester are all polymers, and they all melt, flow into a thin layer, then bake into a hard glassy layer.
 

Last edited by Hal_S; 10-14-20 at 11:51 AM.
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Old 10-14-20, 05:37 PM
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I have tried the scraper method and it literally glided over the stain like there was nothing there 😒
 
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Old 10-14-20, 06:14 PM
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Originally Posted by Terrapin69
I have tried the scraper method and it literally glided over the stain like there was nothing there 😒
Try a wet paper towel over night. That loosens up the edges of the stain so you can find an 'edge' and scrape off the stain.
If that doesn't work, try a paper towel and pour on diet soda. The pH is lower than vinegar, AND the carbonation seems to help pry debris out from between the finest grains of the glass top.
 
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