Is there a possible problem with using pots and pans that having a non stick coating?
There is no halachic problem with new Teflon pots. However, if they were used throughout the year for chometz, they should not be kashered and may not be used for Pesach.
Some have a hiddur to avoid using even new Teflon pots for Pesach. Some avoid using it throughout the year too. These are not halachically mandated.