Not quite. Off-gassing begins at a bit under 400F. And the assumption that it's "really tough" to reach either temperature (400 or 500F) is wildly incorrect for

Not quite. Off-gassing begins at a bit under 400F. And the assumption that it's "really tough" to reach either temperature (400 or 500F) is wildly incorrect for the realities of cheap stovetops around the world. Gas / propane is widely used and can cause teflon to begin smoking within a minute or two. But yes, it's probably fine on your fancy glass induction stovetop.