Granite stone cookware isn’t necessarily made of stone. It’s usually just aluminum coated with non-stick coatings that aren’t any different from that of Teflon. Branding cookware as “stoneware” or “granite” is often a strategic marketing tactic to portray it as natural and long-lasting. If granite stoneware is devoid of PFAS, PFOA, and PTFE and utilizes a ceramic non-stick layer, it can be considered healthy.