Contigo
Contigo's whole identity is the AutoSeal lid - a spring-loaded push-button valve you drink through - and that valve, the spout, and the lid body are all plastic, sealed with silicone. Even on the stainless steel West Loop mugs, the drink flows entirely through an all-plastic mechanism, so hot coffee runs over plastic every sip. The bottles are "BPA-free," which says nothing about the plastic your mouth actually meets. It is a plastic-lid brand with some steel bodies attached.
How clear are their specs?
Contigo labels products BPA-free and describes the AutoSeal mechanism, but does not spell out the specific plastics in the lid or that the sip path is entirely plastic.
Lead testing disclosure
No dedicated lead/cadmium testing page, named lab report, or published test numbers found on contigo.com or gocontigo.com. Contigo's Materials & Construction FAQ covers BPA-free plastics but doesn't mention lead or cadmium; a "nickel and lead free" claim about the stainless body surfaces only in customer-service responses, not backed by any published report. Meanwhile independent XRF testing (Lead Safe Mama) has found a lead-based sealing dot under the base of many Contigo insulated steel bottles - a real concern Contigo does not appear to address publicly.
- manufacturer https://www.gocontigo.com/on/demandware.store/Sites-contigo-Site/default/Support-Show?cfid=materials-contstruction-faq Contigo's Materials & Construction FAQ - covers BPA-free plastic claims, no mention of lead or cadmium testing
- lab-test https://tamararubin.com/category/contigo/ independent XRF testing archive showing a leaded sealing dot found under the bottom cap of many Contigo insulated steel bottles
Products to avoid
Documented so you know what to skip — each still has a full breakdown and sources.
