I think not one of them is truly 100% heat resistant. Just like granite. You might get lucky, you might get not. (I was, with my current granite; but then I try not to put hot pots right on it too. Happens but seldom)

Stainless steel is heat resistant. Ceramic tile is heat resistant. I heard new porcelain solid surfaces are heat resistant..if I'm not mistaken.

The rest, is not guaranteed.

We have dekton from Home Depot . It's heat resistant to 1400 degrees. Love being able to put things on it straight from the oven. That is not recommended for regular Quartz.

NO. We cracked a Silestone countertop just weeks after moving in. Apparently a crock-pot on high for several hours is too much.....

I have used my crockpot on my Ceasarstone countertop without thought for 10 hours with no problem. But then I read on here I shouldn't have, so now I put it on a silicon mat.

No it's not heat resistant.

"Resistant" is a pretty vague term. "Heat" isn't really defined here either. As far as typical kitchen use goes, "heat resistant" means use a trivet.

Something like Dekton and many tiles, as well as stainless steel, can be considered heat proof in a typical kitchen setting. Yeah, they can melt or discolor or vaporize at the proper temperatures, but that won't happen in your kitchen.

From a repairperson, all of the above.

Hot pans can scorch the resin of quartz countertops. Damaged resin can't be buffed back to its original sheen, so you want to avoid it by placing hot pads under your pans.

Read the Use and Care info and the warranty of any quartz you're considering. They're available on their websites. Be aware that there are some off brands of Chinese quartz which do not use the patented Breton machinery of the big boys. There have been problems reported here with some Chinese quartz.

Quartz is heat resistant, not heat proof. There is a difference. They
are also stain resistant, but in the years that I had quartz countertops
(14 years), they did not stain, did not scratch, did not scorch or
crack when I put my hot items directly on the countertop and they were
fine when I stood on the counters to change the lightbulbs in the
ceiling. Lucky? Perhaps. But they are not fragile.

I think Sherri1058 is lucky. Use of a trivet is required. I would not put something that you know will really heat up directly onto the counter as the heat will impact the epoxy in the countertop, maybe on the first use, maybe on the thousand. Given the substantial cost to replace....I'd err on the side of caution.

I actually don't think sherri was lucky - I think people whose quartz has stained or scorched were UNlucky, but then the result is the same either way, which is that quartz is quite resistant to all those nasty things, but any of them could happen.