When tested with an XRF instrument this vintage Corelle dish (Made in USA) with a yellow basket and blue and red flowers – had the following readings:
Test centered on blue flower – in the center of the food surface of the dish:
- Lead (Pb): 2,406 +/- 73 ppm
- Iron (Fe): 239 +/- 114 ppm
- Titanium (Ti): 1,846 +/- 117 ppm
- Cobalt (Co): 187 +/- 68 ppm
Test centered on yellow basket – in the center of the food surface of the dish:
- Lead (Pb): 1,288 +/- 50 ppm
- Zinc (Zn): 40 +/- 17 ppm
- Iron (Fe): 371 +/- 127 ppm
- Vanadium (V): 56 +/- 25 ppm
- Titanium (Ti): 861 +/- 70 ppm
Tests results are science-based and replicable. All tests are done for a minimum of 60 seconds unless otherwise noted. Tests are repeated multiple times to confirm the results, using a freshly calibrated XRF instrument testing in consumer goods mode. Metals not listed in above test results sets were not detected with testing done in “consumer goods mode”.
For context: How much Lead is too much Lead?
The amount of XRF detectable Lead (total Lead content) that is considered unsafe (and illegal) in an item manufactured today that is intended for use by children is anything 90 ppm Lead (or higher) in the paint, glaze or coating. Dishware is not regulated in this same way as it is not considered to be an item intended for use by children. Vintage and antique items are also not regulated for the presence of most toxic heavy metals (Antimony, Lead, Cadmium, Mercury, Arsenic, etc.)
Some additional reading you may be interested in….
- To see more “Made in USA” pieces I have tested, click here.
- To see more Corelle pieces I have tested, click here.
- To see more china I have tested, click here.
New plain white Corelle is always a good choice (from a toxicant perspective). Here is a link to my post with several options for new Lead-free Corelle sets. As always, thank you for reading and for sharing my posts.
Please let me me have any questions!