Breville
Breville designs for performance, not plastic avoidance, and it shows in the parts that touch food: the Smart Oven cavity carries a proprietary nonstick coating right under the food, and the InFizz carbonates into a BPA-free plastic bottle - hence the "not recommended" on that one. The stainless air-fry basket and steel machine bodies read premium, but plastic keeps turning up at the actual contact surfaces. This is a brand that tolerates plastic and coatings where they're convenient, then leans on the metal exterior for the impression.
How clear are their specs?
They'll say the oven coating is PFOA-free and the InFizz bottle is BPA-free, but the nonstick formulation itself is proprietary and uncharacterized - you learn what it isn't, not what it is.
Products to avoid
Documented so you know what to skip — each still has a full breakdown and sources.
Barista Express (BES870XL)
A hugely popular prosumer espresso machine that looks all-steel but isn't - the 67oz removable water tank and the clear bean hopper in the path are plastic. The steel is mostly the exterior, portafilter, and group.
InFizz Fusion
Breville's premium carbonator - carbonates juice, cocktails, and water, but into a BPA-free plastic bottle (with a steel cap/base). Steel machine, plastic water path.
Smart Oven Air Fryer Pro (BOV900)
A superb convection/air-fry oven, but the oven cavity walls carry a nonstick coating right under the food - PFOA-free but, per Breville support, not PTFE-free - so the interior itself is a coated surface.