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Do you know anyone who measures the temp of the surface of their cookware?Yes, I do. I have a cheap IR thermometer with my kitchen utensils, and I use it all the time. I use it every time I roast seeds and spices, because I'm picky that way. I've also used it when I've accidentally left a pan on the burner too long. I'm careful but I screw up now and then. I accidentally heated a stainless pan to nearly 500 deg F once, but 've never gotten a nonstick pan over about 400 deg F.
> Teflon and nonstick coatings kill birds (house pets) when overheated. A nonstick pan in the oven to catch the drippings from your chicken baking at 400 or 425 can kill your parrot quickly. A nonstick wok left unattended for a few minutes during a high-heat stir fry easily reaches 400, enough to kill your cockatiel.
Stories of such low temperatures killing birds are anecdotal. The lowest temperature that has lead to bird deaths in a controlled laboratory setting is 280 deg C, which is about 580 deg F. [1]
Keep in mind that birds are easily killed by common cooking smoke and fumes, as well as natural gas. The problem with these anecdotes is that it's likely there were other fumes involved, and there's no way to know what actually kills a bird oustide a controlled lab setting.
> And as another poster has noted, those coatings always start flaking off.
As I noted in another comment, it's not hard to keep a nonstick pan indefinitely. I have a lot of ten and fifteen year old nonstick pans that are as good as the day I bought them. My daily drivers are about five years old now, good as new. I'm careful not to overheat them and I never use metal utensils in them. Following those two rules, even my kids were able to use them without damaging them.
> Why buy something that produces fumes enough to kill your house pets and also has planned obsolescence built in when you can get a cast iron pan that's indestructible and will increase your iron intake a bit?
If you overheat that cast iron pan, or if you burn food in it, it will kill birds just as easily as a nonstick pan. Also note, there is vastly more evidence of harm from excess iron consumption than there is of harm from overheated PTFE coatings.
That said, I like steel and iron pans. I regularly use enameled steel pans for toasting spices, and I cook crepes and pancakes on steel pans. I don't use cast iron for much because it's heavy as shit and its heat distribution sucks.
I've actually had good luck with seasoned bare aluminum pans. This is more common in some restaurant kitchens, but not so much in home kitchens. Aluminum seasons just as well as iron, and the heat distribution is way way better. But for some reason "cast aluminum" doesn't have quite the same old-timey panache as does cast iron.