Birds have fragile high performance lungs. Using teflon cookware around a pet parrot is a well-known way to kill the pet. Teflon frying pans are supposed to b

Birds have fragile high performance lungs. Using teflon cookware around a pet parrot is a well-known way to kill the pet. Teflon frying pans are supposed to be safe if you never let them overheat, but in practice they're not safe if you have birds in the house. PTFE is toxic for humans too, but human lungs are more robust than bird lungs.