Introduction (for those new to this website):
Tamara Rubin is a federal-award-winning independent advocate for consumer goods safety and a documentary filmmaker. She is also a mother of Lead-poisoned children, her sons were acutely Lead-poisoned in 2005. Since 2009 Tamara has been using XRF testing (a scientific method used by the U.S. Consumer Product Safety Commission) to test consumer goods for toxicants (specifically heavy metals), including Lead, Cadmium, Mercury, Antimony, and Arsenic. All test results reported on this website are science-based, accurate, and replicable. Items are tested multiple times, to confirm the test results for each component tested. Tamara’s work was featured in Consumer Reports Magazine in February of 2023.
First, a short video about this dish!
Full XRF Test Results For The Vintage Fiesta Dish Pictured
60-second test
on food-surface
- Lead (Pb): 295,200 +/- 7,300 ppm
- Cadmium (Cd): 185 +/- 27 ppm
- Mercury (Hg): Non-detect
- Bromine (Br): 539 +/- 53 ppm
- Chromium (Cr): 3,731 +/- 206 ppm
- Vanadium (V): 5,195 +/- 444 ppm
- Iron (Fe): 1,377 +/- 91 ppm
- Nickel (Ni): 853 +- 54 ppm
- Copper (Cu): 808 +/- 90 ppm
- Zinc (Zn): 28,300 +/- 700 ppm
- Antimony (Sb): 143 +/- 49 ppm
- Barium (Ba): 3,231 +/- 217 ppm
Eden says
How old is this dish?
Tamara says
That is an unknown. It was purchased at a thrift store.
Eden says
Thank you
Kirstin says
New Fiestaware in cobalt blue. Just purchased. Not marked lead free. Just “made in usa”
Have you tested new Fiestaware?
Tamara says
Yes – there are examples of both old and new in the fiesta category – here’s the link to the category:
https://tamararubin.com/category/fiesta/
Tamara