4 ms·

It is hard to find data, but it sounds like the grill temp could range as high as 425 F.

by jsight 10y ago

joezydeco 10y ago
Recipes vary, but many go up to 375F (at least in this McD engineering document) https://www.filepicker.io/api/file/9dQcRSZ8TMeeM7Y8Lx6w https://www.filepicker.io/api/file/9dQcRSZ8TMeeM7Y8Lx6w I want to believe that teflon is indeed totally inert until 500F, but somehow I just don't trust that. It's the low-temp PFOA leakage into the product I'm looking at here, not the fumes released at higher temps. If the wrappers are doing it at ambient, what's happening at cooking temperatures?
- dpark 10y ago
  Why not? Given the number of people paranoid about teflon, I'd expect someone would have demonstrated the danger at lower temperatures by now if it exists.
  - joezydeco 10y ago
    That's we thought about the wrappers.
    - dpark 10y ago
      3M agreed 15 years ago to phase out PFOA. We know (and knew) these chemicals were dangerous. Teflon has been heavily studied and widely used and we still don't have any evidence that it's dangerous.
- nate_meurer 10y ago
  Absolutely, don't trust it. The fact of Teflon's extreme toxicity at temperatures commonly encountered in cooking is undisputed. Quoting from http://www.ewg.org/research/canaries-kitchen/teflon-offgas-studies http://www.ewg.org/research/canaries-kitchen/teflon-offgas-s...: > The lowest temperature at which nonstick coatings have been reported to kill birds in a peer-reviewed study is 396°F (202°C) That website offers a lot of evidence regarding Teflon's toxicity in other animals as well, but birds seem by far the most sensitive. Granted now, birds ain't humans. In particular, our unusually massive and efficient livers protect us from a lot of things that readily kill other animals (e.g., aflatoxin, which we withstand in much higher doses than most other creatures). But this just tells us that our bodies are somehow coping with the poison enough to allow our survival. It doesn't tell us the poison is harmless to us, and IMO fluorocarbon toxicity in humans has been woefully understudied.
  - ars 10y ago
    > The lowest temperature at which nonstick coatings have been reported to kill birds in a peer-reviewed study is 396°F (202°C) If you want to be fair, you should also quote some numbers for oil. Most oils will kill birds at much lower temperatures. Which makes Teflon safer than oil.
    - nate_meurer 10y ago
      LOL, safer than oil? Read up on it a bit, and if you think cooking oil emits anything nearly as poisonous as fluoroacetic acid, show me a citation.
dpark 10y ago
Then it should be fine since teflon doesn't start releasing dangerous fumes until about 575, which McDonalds grills probably don't reach even if you try.

It is hard to find data, but it sounds like the grill temp could range as high as 425 F.

by jsight 10y ago

It is hard to find data, but it sounds like the grill temp could range as high as 425 F.

Recipes vary, but many go up to 375F (at least in this McD engineering document) https://www.filepicker.io/api/file/9dQcRSZ8TMeeM7Y8Lx6w https://www.filepicker.io/api/file/9dQcRSZ8TMeeM7Y8Lx6w I want to believe that teflon is indeed totally inert until 500F, but somehow I just don't trust that. It's the low-temp PFOA leakage into the product I'm looking at here, not the fumes released at higher temps. If the wrappers are doing it at ambient, what's happening at cooking temperatures?

dpark 10y ago
Why not? Given the number of people paranoid about teflon, I'd expect someone would have demonstrated the danger at lower temperatures by now if it exists.
- joezydeco 10y ago
  That's we thought about the wrappers.
  - dpark 10y ago
    3M agreed 15 years ago to phase out PFOA. We know (and knew) these chemicals were dangerous. Teflon has been heavily studied and widely used and we still don't have any evidence that it's dangerous.
nate_meurer 10y ago
Absolutely, don't trust it. The fact of Teflon's extreme toxicity at temperatures commonly encountered in cooking is undisputed. Quoting from http://www.ewg.org/research/canaries-kitchen/teflon-offgas-studies http://www.ewg.org/research/canaries-kitchen/teflon-offgas-s...: > The lowest temperature at which nonstick coatings have been reported to kill birds in a peer-reviewed study is 396°F (202°C) That website offers a lot of evidence regarding Teflon's toxicity in other animals as well, but birds seem by far the most sensitive. Granted now, birds ain't humans. In particular, our unusually massive and efficient livers protect us from a lot of things that readily kill other animals (e.g., aflatoxin, which we withstand in much higher doses than most other creatures). But this just tells us that our bodies are somehow coping with the poison enough to allow our survival. It doesn't tell us the poison is harmless to us, and IMO fluorocarbon toxicity in humans has been woefully understudied.
- ars 10y ago
  > The lowest temperature at which nonstick coatings have been reported to kill birds in a peer-reviewed study is 396°F (202°C) If you want to be fair, you should also quote some numbers for oil. Most oils will kill birds at much lower temperatures. Which makes Teflon safer than oil.
  - nate_meurer 10y ago
    LOL, safer than oil? Read up on it a bit, and if you think cooking oil emits anything nearly as poisonous as fluoroacetic acid, show me a citation.

dpark 10y ago

Then it should be fine since teflon doesn't start releasing dangerous fumes until about 575, which McDonalds grills probably don't reach even if you try.