Chantal
Specs partially disclosed chantal.com ↗
A mainstream cookware brand that, with the Mia Ekettle, made a deliberate run at the plastic-free kettle buyer: the current model keeps the interior, gauge, spout, lid, and handle all stainless, with no plastic in the water path. It stops just short of fully plastic-free because a silicone gasket seals the steam tube - the same silicone caveat that applies to nearly every electric kettle. Chantal markets the "no plastic" honestly here, silicone aside.
How clear are their specs?
States "all stainless-steel interior, no plastic" and 18/8 steel on the product page, but the silicone steam-tube gasket surfaces only via third-party plastic-free reviewers relaying a manufacturer statement, not Chantal's own spec copy.