Top critical review
Good only up to 400 degrees.
May 30, 2017
Here's my story: I've used these two or three times a week for a little more than half a year. These are pretty decent but do not perform to the full level advertised for them.
They will stain in the presence of things like tomato sauce, turmeric, and hot oils. That's unfortunate but not a deal-breaker for me, so long as they work properly.
Their key issue, the one that may a no-go issue for some users, is that they will burn at or after around 400 degrees. They definitely will burn at 425. This is well below the temperature limit that the product is supposed to be able to take.
Now I don't know whether that's the way they are from day one or whether they became more likely to burn after a series of use and washing possibly eroded their silicone coating. Either way, that's a huge failure when the product is supposed to have a much more robust temperature tolerance.
Myself, I was using them at lower temperatures until recently. When I started trying to use them at 400-450, that's when they went downhill after a couple of uses.
From my experience I would say they are viable up until 375-400. After that point, they will not survive and you'll end up having to toss and replace them as I am now forced to do.
Buyers beware! These are good, but only good to a point that is well below what we are being told will actually work with them.
If you don't plan to use them beyond 400 degrees, you should be OK. If you may want to go past that temperature, you will want some other option than these mats.