XRF readings:
Lead: 27500 ppm · Cadmium: 570 ppm · Arsenic: 300 ppm
Verdict: Very high: avoid food contact
This “TALES” Porcelain Sake Cup: 27,500 ppm Lead & 570 ppm Cadmium on the exterior red logo area. tested at 27500 ppm lead, heavily contaminated. If any of the lead is on the painted surface, decoration, or worn area, expect bioavailable exposure with food contact, mouthing, or abrasion. Cadmium reads 570 ppm, which is also flagged territory. Arsenic reads 300 ppm, worth noting on top of the lead question.
What this XRF reading actually means →
XRF measures lead presence on the surface. It does not measure whether that lead can reach a person. That distinction matters for how you should react to this number. Read the full primer.
Test your own dishes with FluoroSpec →
Source: EverythingLead · Test method: XRF (Niton XL 5 Plus, 1.5 sigma)
License: Verdict and methodology © EverythingLead, CC-BY-SA 4.0. Factual XRF measurements are not copyrightable (Feist v. Rural Tel., 499 U.S. 340).