A:Answer The interior is all metal. There is a removable grilling plate that has a nonstick coating (might contain PFAS). All if the racks and trays are aluminum. I also hate cooking with that as well as it is linked to dementia and is harder to clean. I ordered stainless steel baskets, trays, and a rack from Amazon. My unit was on sale when I bought it from here (Black Friday). I did not mind paying for the extra parts.