This is largely advertising hype. If you want to buy wisely, it's best to ignore most of it and try to figure out what GraniteRock cookware really has to offer.
The truth is that GraniteRock/GraniteStone products are basic aluminum pans with a PTFE nonstick coating (that is, a type of Teflon®). Their competitors are brands such as Copper Chef, Gotham Steel, some lines of T-fal (like this one), and dozens more brands of inexpensive stamped aluminum cookware.
这个使用温度上限500F就基本上说明是聚合物，non stick还没有超出特氟龙的。
