What are the exact XRF readings for this dish?
When tested with an XRF instrument the dish (brand new off the Fred Meyer shelf, purchased in 2019) pictured here (Made in the USA Corelle white glass with the “Key West” pattern) had the following readings:
Scope focused on a dark blue area of the dish:
- Cadmium (Cd): 20 +/- 8 ppm
- Chromium (Cr): 1,274 +/- 127 ppm
- Zinc (Zn): 507 +/- 52 ppm
- Iron (Fe): 279 +/- 138 ppm
- Vanadium (V): 1,007 +/- 87 ppm
- Titanium (Ti): 3,827 +/- 224 ppm
- Cobalt (Co): 1,488 +/- 157 ppm
Scope focused on a yellow area of the dish:
- Cadmium (Cd): 141 +/- 12 ppm
- Zinc (Zn): 909 +/- 67 ppm
- Iron (Fe): 443 +/- 142 ppm
- Vanadium (V): 964 +/- 77 ppm
- Titanium (Ti): 3208 +/- 222 ppm
All tests were done for a minimum of 60 seconds on a freshly calibrated instruments. Tests were repeated multiple times to confirm the results. Test results reported here on this blog are science-based and replicable.
Is Cadmium a problem?
Cadmium is a known carcinogen which, in my opinion, does not belong in any amount in any kitchenware (especially in the dishes we eat off of every day with our family!) This is one of the reasons I avoid the Corelle dishes with painted decorative elements (of any color.) You can read more about Cadmium toxicity here on this link.
For context: the amount of Cadmium that is considered toxic and illegal in the country of Denmark (the only country I am aware of that has a total Cadmium content limit for consumer goods) is anything 75 ppm or higher. Washington State (here in the U.S.) has a Cadmium toxicity level (for consumer goods) of 40 ppm and higher. As a result the amount of Cadmium I detected in this dish would be considered illegal in Washington State and Denmark… hmmmm maybe it’s time to have a convo with my friends in the Washington State Health Department about this!
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As always, please let me know if you have any questions.