Yama Glass
Yama doesn't brand itself plastic-free, but its glass brewers get there through traditional materials: hand-blown borosilicate glass with a stainless cone filter and, on the model we list, a glass handle instead of a plastic or silicone collar. That combination is fully plastic-free. Across the wider catalog some pieces use silicone seals or plastic parts, so it's the glass-handled, stainless-filter brewers specifically — not the whole line — that clear the bar.
How clear are their specs?
The relevant brewers are visibly simple — borosilicate glass and a stainless filter — with no coatings or liners; you can see exactly what the water touches.
