When tested with an XRF instrument this modern Fiestaware dark blue bowl had the following readings:
- non-detect (negative) for Lead,
- non-detect (negative) for Mercury,
- non-detect (negative) for Cadmium,
- This dish tested positive for Arsenic at 50 ppm.
While I am NOT an expert in Arsenic toxicity and I would imagine it is best not to have ANY Arsenic in our dishes, this level seems to be a very low level trace contaminant and is therefore not likely to be presenting a health hazard of any kind.
I personally prefer dishes with NO Cadmium, Lead, Arsenic or Mercury – so I always stick with plain white Corelle (like these dishes that I have in my home, link* here.)
For safer choices in dishware options, click here.
As always, please let me know if you have any questions.
Thank you for reading and for sharing my posts.
Tamara Rubin
#LeadSafeMama
*Amazon links are affiliate links. If you purchase something after clicking on one of my links I may receive a small percentage of what you spend at no extra cost to you. Thank you for supporting my advocacy work in this way.
Are you saying it has arsenic in it?
Yes. It tested positive for arsenic at 50 parts per million.
You describe the Fiestaware bowl as blue. I have dark purple. Could they be the same and should I be concerned about my bowls and dishes?
Hi Tamara
Found your website while searching for toxicity of Older Tupperware in which I store my puppy ‘s food.
Your replies to questions are helpful.
Thanks
Victoria
Hi Victoria! Thank you for commenting!
Tamara
We have a set of this color (“cobalt”, purchased around 2006). The plates are scratched up and we will not use again based on your arsenic reading. Thank you for posting your results and for ALL the work that you do!
I researched arsenic exposure and could find little about how much is likely to leach from dishes. I am considering calling Fiesta about it. I know lead is your primary concern. Have you followed up with Fiesta about arsenic?
Do you know if it is likely in the glaze or if it likely was in a specific batch of clay they used? That bowl looks pretty scratched up.