I have lab electric grill that I use for Pessach… ithis way I can keep Shalom bayit… Without our permission it has been used for non kosher food
(Lesson learned, I’ll lock it up next time since I left it in the yard) … it’s a “bistro electric grill” I also have the ceramic stones… can it be kashered?
Yes. Clean it. Then turn it on to it’s highest till it’s reached it’s full heat and it’s kosher.