Vintage Blue Pyrex Casserole.
Below are the XRF test results for this piece:
- Top blue (on lid):
- Lead (Pb): 108,400 ppm
- Arsenic (As): 27,100 ppm
- Base blue:
- Lead (Pb): 84,000 ppm
- Arsenic (As): 23,800 ppm
- Plane white milk glass of base:
- Lead (Pb): 74 ppm
- Arsenic (As): 3,045 ppm
Please share and browse the photo library (click on the #XRFTesting link above) of this site to see items I have personally tested that have tested both positive and negative for Lead.
To learn more about XRF Testing & the potential implications of Lead in cookware click HERE and HERE. Read more about lead-in-Pyrex here.
For some unleaded mixing bowl options, click here!
& unleaded dishes, 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
Could you please explain how this particular piece matters as the color is on the outside. If lead is in the color then it wouldn’t come into contact with the food, right? I can understand the plates because the color pattern touches the food but how do casserole dishes differ? Is lead also in the white portion as it was in the glaze, not just color?
Hi Lisa,
Per the details in the post there is also Lead and arsenic in the glass of this particular piece. Did you read the full XRF test results summary?
The exterior paint also wears off into your kitchen environment and if you stack the pieces at all the paint from the outside of one wears into the inside of the next.
Have you held yours up to the light to get a sense of how much paint has worn off?
Here’s a post that talks about the microscopic amount of Lead dust that it takes to poison a human: https://tamararubin.com/2019/03/the-sugar-packet-analogy-how-much-lead-dust-does-it-take-to-poison-a-child/
Thanks for commenting.
Tamara