drawbacks of non stick

1. Temperature limitations.
2. Non-stick is harder to clean  
3. non-stick cookware produces health issues
4. It is not safe for pregnant women.
5. nonstick cookware is made using a carcinogenic chemical that is PFOA (Perfluorooctanoic) when it is heated it releases harmful toxins. Whenever you cook, you will end up inhaling the toxins. When the utensils are over heated, the Teflon layer breaks down into PFIB chemical. According to the scientific evidence Teflon is harmful to your health. As PFOA is carcinogenic, it is responsible for many cancer diseases.
6.  As these pans age, they begin to chip and flake . Once they do (or once they become scratched), they should be discarded as the chemical non-stick coating can flake into your food.
7. Not suitable for using metal utensils.
8. Throw out a pan if its coating is starting to chip or flake.
9. Pet birds can be sensitive to fumes emitted by some overheated non-stick pans.
10. Stovetop only – not for use in the oven.
11. More difficult to brown or caramelize foods.
12. Not dishwasher-safe.