Originally Posted by CraigC
Aluminum seems to warp easily, IMO. We have switched to All-Clad SS, good quality enameled CI and plain CI.
Thin aluminum warps easily, but not all aluminum cookware is thin.
Many of us grew up with Guardian, once sold door to door on the easy pay plan. I don't think any piece ever warped.
I have a hard anodized aluminum wok. About an eighth inch thick. No warp at all, and has been used on high heat often.