Oops – this broke in shipping! If you are sending me something to test, please make sure it is very well packed. Here’s a link about how to participate in the collaborative testing I do with my readers.
When tested with an XRF instrument the green and white Sango brand dish pictured here had the following readings:
Test focused on glazed food surface of dish:
- Lead (Pb): 973 +/- 48 ppm
- Barium (Ba): 1,994 +/- 104 ppm
- Tin (Sn): 63 +/- 19 ppm
- Zinc (Zn): 38,400 +/- 1,000 ppm
- Copper (Cu): 156 +/- 45 ppm
- Iron (Fe): 1,537 +/- 180 ppm
- Vanadium (V): 1,948 +/- 133 ppm
- Titanium (Ti): 3,756 +/- 228 ppm
- Zirconium (Zr): 9,879 +/- 284 ppm
Test focused on white glazed bottom of dish:
- Lead (Pb): 1,219 +/- 60 ppm
- Barium (Ba): 653 +/- 70 ppm
- Zinc (Zn): 36,800 +/- 1,000 ppm
- Copper (Cu): 107 +/- 45 ppm
- Iron (Fe): 1,285 +/- 182 ppm
- Vanadium (V): 900 +/- 86 ppm
- Titanium (Ti): 1,956 +/- 152 ppm
- Zirconium (Zr): 3,427 +/- 113 ppm
Metals not detected by the XRF in “Consumer Goods” mode are not listed. Tests were done for a minimum of 60 seconds each to confirm the reading. Results are science-based and replicable and conducted with a Niton XL3T XRF in “Consumer Goods” mode.
As always, please let me know if you have any questions.
Thank you for reading and for sharing my posts.
Sorry for being confused by all the great information shared. Plain and simple, are these plates safe to use. I see the results being 973 +\- 43 ppm for the surface glaze but the title of this post show 1,219 ppm. Any clarification you can provide is greatly appreciated.
Kindly, Sue