How to get REALLY burned on stain off glass top stove???

this link might help

https://www.realsimple.com/home-organizing/cleaning/clean-glass-stovetop

I had a similar situation...I steam cleaned mine.

I’m not sure if we’re talking about the same kind of marks, but I find burned on splatters of oil (from frying chicken, for example) really “weld” to glass top stoves and glass-top cleaners fail to remove the hardened oil. Therefore, I use a semi-dull knife I keep handy for these types of marks. I sort of crouch down (to better see the exacts spots) then GENTLY scrape with a knife at about a 45 degree angle . As the knife touches the hardened spots, you can sort of “feel it” with the knife. After the spots are scraped off, I wipe the glass with a damp paper towel (the towel shows the crusty brown oil you removed) and then finish with glass top cleaner for a nice shine.

I once had a hardened crusty ring of burned-on oil that just wouldn’t budge. I removed as much as I could with cleaner then got out my knife; five minutes later, the top looked like new! My sister-in-law uses a razor blade but I find a small paring knife is easier to control. Remember to go slow and gentle and hold the knife at an angle.

That article said something important that I think we all miss. You have to let any cleaning product for stains sit a while so that it has time to work. I think we (including me!) often just put it on and rub it off without giving it enough time to work. So, whatever cleaning method you choose, put it on, set your timer for 30 mins then walk away - or work somewhere else in the kitchen. I used to sell a bathroom/shower cleaning product and the first time I tried it I knew it had to sit for 10-20 mins so I went off to do other things. Sadly I forgot to set a timer. When you're in the 'party/direct sales' business. It helps to have personals stories about your product and figured that I just mess it up.. :( When I remembered about an hour later I was so disappointed in myself. I wanted that great first time use story. However, I had to clean it so I took a clean sponge and cleaned off the glass shower door. OH MY GOSH, I was shocked! It sparkled like new. I now had a story that I could tell about how to clean your glass shower doors with hardly any work! From that point on, I always remembered to give time to let products work. BTW, I'm retired now and the company changed the product to be "green" and it's not the same so please don't ask me what it was. You can't buy it anymore. :(

I hate to say it but sugar is something you need to watch for on glasstop stoves. It can fuse to it and may be permanent. Spaghetti sauce even has sugar in it. When I had a glasstop I took the koolaid out of the cabinet above and I was diligent about wiping up spills immediately.

Let hot water soak in to it. Then Elbow Grease and Bar Keepers friend....

I keep several items that are just for use on my glass stove top.

One is a "no scratch" green scrubby and the second is a razor paint scraper (these 2 items get stored in a little tray in my pot holder drawer.. the green scrubby gets rinsed out and put back and NEVER used in the sink) and the third is a spray bottle of Windex (and paper towels)

We have had this stove for over 15 years and these little things have helped keep the top in fairly good condition with only minor scratching.. (Thanks to the advise from my friend Nancyann)

1. Avoid using just soap and water to wipe down your glass top stove... the soap leaves a residue which will bake on as soon as the unit heats the next time. If you have to use dish soap to clean off greasy stuff.. rinse as well as you can (with a different cloth) and dry off with paper towels... I normally use Simple Green or a commercial "degreaser" first, let it sit a few minutes, scrub with the green scrubby ..this is also the time to remove any really stuck on bits with the razor scraper...dry up with paper towels....repeat if necessary...THEN go over the top again with a Windex type cleaner to remove any soap residue.

2. Always make sure the top is clean before turning on an element... I keep a spray bottle of Windex and use only paper towels to dry the surface... dish towels can have all sorts of stuff on them, unless you have taken it strait from the drawer. A quick wipe with the Windex can remove crumbs, etc... that will cook onto the surface and be hard to remove... do this RELIGIOUSLY and you can avoid a lot of heavy duty scraping and cleaning... just ask my husband, who had to do this because he cooked scrambled eggs on a burner that was greasy from cooking hamburgers the night before...because he was too lazy to clean it first....it took him 2 hours.