[baconmania]

Most consumer PTFE coatings are declared to be safe up to 450°F. It is trivially easy to heat a pan beyond that temperature on modern gas, electric, and induction ranges in less than ten minutes. The margin of safety is demonstrably nonexistent and it’s wild to me that we just accept this risk constantly, everywhere, anytime we eat food (whether at home or from a restaurant).

[mrob]

It's easy to learn how your cooking setup responds using a cheap IR thermometer. You can check it's working correctly by boiling water in the pan and confirming the temperature is close enough to the expected boiling point for your local air pressure. The risk depends greatly on both the construction of the pan (poor heat conductivity means hot spots from uneven heating) and cooking technique. Using high heat, heating empty pans, and neglecting stirring are all dangerous. Leaving heated pans unattended is especially dangerous, and anecdotally appears to be responsible for most severe overheating events. With correct technique I believe the risk is negligible and well worth the greater convenience of non-stick pans. But I don't trust third parties to use correct technique.

[ars]

So you replace the Teflon with oil, and now your risk is even higher. What did you accomplish?

[baconmania]

It’s not super clear what you’re getting at here. The choice isn’t teflon or oil. Everyone uses fat to sear food in a pan, whether or not it’s a nonstick pan. Cooking with a high-smoke-point oil which is low in saturated fat, such as avocado oil, with stainless steel, is strictly better than cooking with teflon pans by every measurable health metric.

[mrob]

Searing food in a PTFE pan almost certainly involves overheating it. Depending on what you're cooking you don't necessarily need oil (e.g. you don't need it for cooking eggs), although you might want to use some at moderate temperature for flavor. And for some foods oil is necessary to avoid overheating the pan, because it improves heat transfer from the pan to the food. Check with an IR thermometer every time you cook something new.

[looofooo0]

Source?