Lead Database

Handmade Spotted Ceramic Cup: 31 +/: 8 ppm lead by XRF
XRF readings: Lead: 8 ppm · Cadmium: 7 ppm · Arsenic: not measured Verdict: Low, probably not a concern 8 ppm lead detected, below the 90 ppm children's safety threshold. At this level, most toxicologists would not flag this as actionable for typical adult use. FluoroSpec test: if it doesn't glow, the lead is not in reactive surface form. There is no safe amount of lead. This number is a starting point, not a verdict on your safety. What matters is whether the lead can actually reach a person. Think... Read more...
Modern Handmade Japanese Ceramic Dishes Example #6: 37 ppm lead by XRF
XRF readings: Lead: 37 ppm · Cadmium: 4 ppm · Arsenic: not measured Verdict: Low, probably not a concern 37 ppm lead detected, below the 90 ppm children's safety threshold. At this level, most toxicologists would not flag this as actionable for typical adult use. FluoroSpec test: if it doesn't glow, the lead is not in reactive surface form. There is no safe amount of lead. This number is a starting point, not a verdict on your safety. What matters is whether the lead can actually reach a person. Think... Read more...
Modern Handmade Japanese Ceramic Dishes Example #5: 17,800 ppm lead by XRF
XRF readings: Lead: 17,800 ppm · Cadmium: 20 ppm · Arsenic: not measured Verdict: Very high, avoid food contact 17,800 ppm lead detected. While lead in fired ceramic glaze is generally tightly bound, at this concentration leaching into acidic foods (tomato, citrus, vinegar) becomes a realistic concern even in well-fired ware. FluoroSpec will confirm whether lead is surface-reactive. There is no safe amount of lead. This number is a starting point, not a verdict on your safety. What matters is whether the lead can actually reach a person. Think of... Read more...
Modern Handmade Japanese Ceramic Dishes Example #4: 9 ppm lead by XRF
XRF readings: Lead: 9 ppm · Cadmium: 5 ppm · Arsenic: not measured Verdict: Low, probably not a concern 9 ppm lead detected, below the 90 ppm children's safety threshold. At this level, most toxicologists would not flag this as actionable for typical adult use. FluoroSpec test: if it doesn't glow, the lead is not in reactive surface form. There is no safe amount of lead. This number is a starting point, not a verdict on your safety. What matters is whether the lead can actually reach a person. Think... Read more...
Modern Handmade Japanese Ceramic Dishes Example #3: 43 ppm lead by XRF
XRF readings: Lead: 43 ppm · Cadmium: 5 ppm · Arsenic: not measured Verdict: Low, probably not a concern 43 ppm lead detected, below the 90 ppm children's safety threshold. At this level, most toxicologists would not flag this as actionable for typical adult use. FluoroSpec test: if it doesn't glow, the lead is not in reactive surface form. There is no safe amount of lead. This number is a starting point, not a verdict on your safety. What matters is whether the lead can actually reach a person. Think... Read more...
Modern Handmade Japanese Ceramic Dishes Example #1: 29 ppm lead by XRF
XRF readings: Lead: 29 ppm · Cadmium: 4 ppm · Arsenic: not measured Verdict: Low, probably not a concern 29 ppm lead detected, below the 90 ppm children's safety threshold. At this level, most toxicologists would not flag this as actionable for typical adult use. FluoroSpec test: if it doesn't glow, the lead is not in reactive surface form. There is no safe amount of lead. This number is a starting point, not a verdict on your safety. What matters is whether the lead can actually reach a person. Think... Read more...
Small handmade green glazed ceramic dish: 23 ppm lead by XRF
XRF readings: Lead: 23 ppm · Cadmium: 6 ppm · Arsenic: not measured Verdict: Low, probably not a concern 23 ppm lead detected, below the 90 ppm children's safety threshold. At this level, most toxicologists would not flag this as actionable for typical adult use. FluoroSpec test: if it doesn't glow, the lead is not in reactive surface form. There is no safe amount of lead. This number is a starting point, not a verdict on your safety. What matters is whether the lead can actually reach a person. Think... Read more...
Handmade Ceramic Mug
XRF readings: Lead: not measured · Cadmium: 54 ppm · Arsenic: not measured Verdict: Lead-free per XRF No lead detected by XRF. Cadmium present at 54 ppm, separate concern for colored glazes. FluoroSpec test will confirm no surface lead reactivity. There is no safe amount of lead. This number is a starting point, not a verdict on your safety. What matters is whether the lead can actually reach a person. Think of tacks: a box of them in a drawer is fine, the same tacks loose on the kitchen floor... Read more...
Handmade Ceramic Earrings: 90,000 ppm lead by XRF
XRF readings: Lead: 90,000 ppm · Cadmium: not measured · Arsenic: not measured Verdict: Extreme, do not use 90,000 ppm lead, roughly 9x the CPSC 90 ppm children's limit. At this concentration, even fired ceramic glaze carries leaching risk under acidic food conditions. No food contact under any circumstances. FluoroSpec will glow. There is no safe amount of lead. This number is a starting point, not a verdict on your safety. What matters is whether the lead can actually reach a person. Think of tacks: a box of them in... Read more...
Made In Poland – Handmade Ceramic Boleslawiec Mug: 91 ppm Lead, considered safe by all standards.
XRF readings: Lead: 100 ppm · Cadmium: 0 ppm · Arsenic: 0 ppm Verdict: Low-elevated: below most adult thresholds This Made In Poland – Handmade Ceramic Boleslawiec Mug: 91 ppm Lead, considered safe by all standards. reads 100 ppm lead, above the 90 ppm CPSC limit for children's products. Whether the lead can actually reach food depends on whether it's locked into fired glaze (typically not bioavailable) or sitting on surface paint (typically is). What this XRF reading actually means → XRF measures lead presence on the surface. It does... Read more...
Lead-Safe Handmade Mug
XRF readings: Lead: 101 ppm · Cadmium: 0 ppm · Arsenic: 62 ppm Verdict: Low-elevated: below most adult thresholds This Lead-Safe Handmade Mug reads 101 ppm lead, above the 90 ppm CPSC limit for children's products. Whether the lead can actually reach food depends on whether it's locked into fired glaze (typically not bioavailable) or sitting on surface paint (typically is). 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... Read more...
XRF test results for Contemporary Chateau hand-painted, “Made in Japan” stoneware dish sent in by Vida in Minnesota
XRF readings: Lead: data not on file · Cadmium: 0 ppm · Arsenic: 0 ppm Verdict: Not Lead Safe This XRF test results for Contemporary Chateau hand-painted, “Made in Japan” stoneware dish sent in by Vida in Minnesota carries a Not Lead Safe verdict in the EverythingLead dataset. Numeric XRF data is not on file for this entry, but the verdict reflects elemental lead detected at action-level concentrations. What this XRF reading actually means → XRF measures lead presence on the surface. It does not measure whether that lead can... Read more...