Quartz is resin ..and that is scorch from heat. It doesn't matter it is "smooth". It is scorched. We have no idea what you are cooking, searing, boiling . We don't know if you drag a pot, even for a few seconds, off that heat to the counter.

"Quartz countertops are extremely heat resistant. However, they can only withstand heat up until a certain threshold. During the countertop’s fabrication process, the quartz slab is cured at temperatures of about 180 degrees Fahrenheit. This curing process allows the countertops to develop a resistance to stains, chips, abrasions, and heat. Once installed, you can expect your quartz countertops to withstand heat up to about 300 degrees Fahrenheit. If exposed to temperatures above this range, the resin binders within the quartz slab can change their chemical state — often impacting the color of the quartz."

First step?

Try a poultice overnight

Step One: In a small bowl, mix together equal flour and hydrogen peroxide parts to create a paste.

• Step Two: Apply the paste over the affected area and cover it with plastic wrap.
• Step Three: Allow the paste to sit on the surface of the burn mark for 24 hours.
• Step Four: After 24 hours, remove the plastic wrap and use a clean damp sponge or cloth to wipe away the paste.
• Step Five: Rinse the area with water and dry it off with a clean cloth. There you have it!

I’ll assume if it is it can’t be cleaned….. but should we expect it to spread. Mfgr is suggesting it’s installed too close to stove causing the increase in area.

Additional information:

https://favoredstoneguides.com/quartz-countertops-turn-yellow/

Why are you assuming it can't be cleaned, if you haven't tried?

You might get it off with a poultice. Either way? Put something next to that burner if you do! Quartz routinely accepts ranges, cook tops next to, or dropped in. We have no idea what you have in your kitchen..the scorch, or the cook, or a picture of what is going on.......

You might try leaving a poultice of Bar Keepers friend overnight, and a light scrub with a magic eraser. At this point? Not much to lose.

The cambria representative cleaned it but it was a short term approach the longer time approach is worth it ill send photos

Photo attached

Yup........ scorch. You could try raising the range just a bit. Legs adjust beneath. Allow that flame some room to dissipate heat a bit. Unlike below? there is no "barrier/trim" around the burner on your range.

If you could slide a thin piece of stainless when you cook between counter and that burner? You might prevent it worsening.

More often? It's found ....behind if used as a backsplash.

Fake plastic stone and heat do not platy well toghther you might get lucky with the poultice but you are going to need a much better way to control the heat from that burner . Next time get real stone.

I am a fabricator. The resin is heat damaged. Even if you manage to remove the coloration (which I think unlikely) it will reoccur as long as you continue to use that burner the same way. What you are getting is radiant heat off the cooking pots heating the adjacent countertop material. put a simple thermal barrier like a trivet with feet in the location that is discoloring and you will alleviate the problem. The trivet will get hot but it will block the radiant heat off the cooking pot from reaching the countertop.

Thank you. We can do that easily today. We are also considering a stainless edge and possibly a lip on both sides as a barrier.

Js:

Show us the predominant pan you use there please. If it extends over the burner, you've probably violated the appliance manufacturer's useage instructions. If that's the case, were I your warranty agent, I'd rule this customer abuse.

The yellowing is scorch and isn't going to poultice out, although it may be removed mechanically if it isn't too deep.

Here’s the pan. I’ve had quartz before. The stovetop was similar but not exact model. I’m Looking for options.

I have an arrangement similar to yours, so, of course, I had to run a little experiment. I turned up the heat on the highest BTU burner, immediately adjacent to the quartz countertop, with a large pot on the burner. Placing my hand next to it on the counter, there was absolutely no warmth. Could it be that positioning the pan beyond the edge of the range transfered heat downward? We’ve never had scorching of countertops in either of our two homes. Good luck to you.

Flopscat1 is your range top burner above the counter height . We plan to lift it thru the legs as suggested earlier to mitigate the direct exposure. Just curious.

Yes, our range sits slightly higher than yours, above counter height. Before installation I contacted Cambria and the manufacturer of the range regading this issue. They both indicated that, if installed per their specs, there should be no issue.

The range top should not be flush or near flush with the counter. That is your problem. The top of our range is 3/4 of an inch higher than the countertop.

I am now intrigued by this discussion. The installation manual for our range says nothing about elevating the top surface above the countertop. In addition, I can find nothing in an internet search to suggest doing so. Hmmmm….

What a bummer! Sorry this happened to your counters :/ What range do you have? I'm curious what your spec says.

I too am interested in this since our Cambria counters will be installed in a few weeks. I just reviewed our specs for our range (for the 10th time probably) and it just says "cooktop must be at or above counter". It makes sense to me that it should be higher to prevent the issue you experienced. As ours sits now, it will be about 1" above the counters once installed. Not sure if this is the stock height or if our workers adjusted the legs to achieve that height.

I hope you're able to find someone to remove the scorch marks. Good luck!

It says ’at or above’ counter - we did not adjust before, but will thisweekend and are considering a stainless lip or edge which was suggested here 2019 GE profile gas edge to edge stove the center burner is very small and not a great option but will use it more - leaning toward raising stove and add stainless efge/lip - will definitely consider a different range layout in future thanks alll!