Espro
Espro gets the body right - stainless steel shell and plunger - and delivers an exceptionally clean cup, but stops short of plastic-free where it matters. The double filter baskets carry a BPA-free polypropylene cage that sits right in the brew path, in hot-water contact during every steep. It's a functional part they chose plastic for, not a food-contact surface they engineered out, so this lands as minimal-contact rather than clean.
How clear are their specs?
Espro names the stainless body and calls the filter cage "BPA-free polypropylene," but leans on the BPA-free label rather than addressing that a plastic part sits in the brew path.
Products to avoid
Documented so you know what to skip — each still has a full breakdown and sources.
