Using a plastic-coated pan on an induction cooktop should not directly damage the cooktop itself, but it is generally not recommended. Induction cooktops work by creating a magnetic field that induces heat directly in the cookware, which then transfers to the food. For this process to work efficiently and safely, the cookware must have a magnetic bottom, such as stainless steel or cast iron.
Cookware with a plastic coating or non-magnetic material will not be compatible with induction cooktops because the magnetic field will not interact with the pan, and as a result, the cookware won't heat up properly. Additionally, if the plastic coating is exposed to high heat, it can melt or release harmful fumes, which can be hazardous and damage the cookware.
To use an induction cooktop safely and effectively, make sure to use cookware with a magnetic base that is designed specifically for induction cooking. Suitable materials include stainless steel, cast iron, or certain types of magnetic stainless steel with an iron core. These materials ensure proper heat transfer and prevent any potential damage to both the cookware and the induction cooktop.