Saki
Saki builds the Luna kettle around a fully stainless water path - lid included - which is genuinely rare, since most "stainless" kettles still expose plastic at the lid or gauge. Plastic is pushed out to where it's hardest to replace: the lid gasket, a functional seal rather than a surface the water sits against. This is a brand that actually delivers on the plastic-free-water-path claim it markets.
How clear are their specs?
Saki is specific that the whole water path including the lid is stainless and calls out the remaining plastic as a lid gasket, so you know exactly where the little plastic there is lives.
