Unfortunately, once you notice that you’re using a scratched Teflon pan — you also need to remember that you’re putting yourself at risk of inhaling dangerous toxic chemicals. Of course, when it’s solid and in one piece, Teflon is a pretty inert chemical; a mint-condition Teflon pan is as safe to use as any other. Unfortunately, the dangers start once it degrades — every single cooking session means releasing dangerous gases into your nearest vicinity. This is even more true if you’re cooking at a higher level of temperature. Which, let’s face it — all of us tend to do from time to time. Considering this, you should think twice before you use a Teflon pan that’s already been scratched. And if you throw one out, know that these things, unfortunately, can’t be recycled — so they’re all kinds of trouble for the environment as well.