Stainless steel is a bare metal surface — no coatings, no PTFE, no PFAS. It is one of the most inert cooking surfaces available. HexClad is a hybrid pan with a laser-etched stainless steel pattern bonded over a PTFE (polytetrafluoroethylene) nonstick base. Despite the premium marketing, the nonstick valleys in HexClad are still made of PTFE — the same fluoropolymer chemistry used in traditional Teflon.
At normal cooking temperatures PTFE is considered stable, but it begins to degrade above 500°F (260°C), releasing fine particles and fumes. HexClad's stainless peaks allow higher heat than a fully coated pan, which ironically increases the risk of inadvertently overheating the PTFE base. The coating also chips and wears over time, which means PTFE particles can migrate into food.
For safety-conscious households, plain stainless steel is the cleaner choice. It is lifetime durable, has no synthetic coating to degrade or flake, and requires no replacement. HexClad is rated 'caution' — not as dangerous as budget PTFE pans, but not meaningfully safer than stainless. If you want the convenience of a nonstick surface without PTFE, a well-seasoned carbon steel or ceramic-coated pan is a better alternative.