VitaClay
Designs plastic and coatings out of the food path entirely by cooking in an unglazed natural Zisha clay pot with a matching clay lid - no glaze, no nonstick, and no plastic or even silicone touching the food. That's a stronger stance than most multicookers, which cook in coated metal inserts. Plastic almost certainly remains in the outer electric housing and controls, but it's kept out of the cooking vessel.
How clear are their specs?
Unusually specific about the food-contact clay - unglazed Zisha, free of glazes, coatings, lead and cadmium, with third-party lab reports cited - but less detailed about the outer-housing materials.
Lead testing disclosure
Publishes third-party FDA-lab test reports showing the food-contact clay below detectable lead (to 0.01 ppm accuracy) and certified to FDA/CA Prop 65/RoHS. Worth knowing: this only covers the clay. Independent XRF testing (Lead Safe Mama) separately found very high lead in the non-food-contact metal liner/heating element of one unit, which the brand's own testing didn't address - so "lead-free" from VitaClay is truer of the clay than of the whole appliance.
- manufacturer https://vitaclaychef.com/pages/faqs
- lab-test https://tamararubin.com/2018/11/yet-another-lead-free-product-tests-positive-for-lead-vitaclay-chef-slow-cooker-70400-ppm-lead-please-click-and-read-for-more-info/ independent XRF finding on the non-food-contact metal parts, not covered by the brand's own clay-only testing
