World Kitchen Cherish Pattern white ceramic gravy boat with lid: 30 ppm Lead on the food surface (safe by all standards)

For those new to this website:

Tamara Rubin is a multiple-federal-award-winning independent advocate for childhood Lead poisoning prevention and consumer goods safety, and a documentary filmmaker. She is also a mother of Lead-poisoned children (two of her sons were acutely Lead-poisoned in 2005). Since 2009, Tamara has been using XRF technology (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). Tamara’s work was featured in Consumer Reports Magazine in February 2023 (March 2023 print edition).

When tested with an XRF instrument, the World Kitchen “Cherish” pattern white ceramic gravy boat by Corelle (pictured here) had the following readings:

Food surface/ white glazed areas
60-second test

• Lead (Pb): 30 +/- 10 ppm
• Bismuth (Bi): 191 +/ 15 ppm
• Zinc (Zn): 52 +/- 15 ppm
• Iron (Fe): 3,060 +/- 209 ppm
• Titanium (Ti): 147 +/- 69 ppm
• No other metals were detected.

Logo area (in black writing)

• Lead (Pb): 58 +/- 11 ppm (safe by all standards)
• Cadmium (Cd): 12 +/- 4 ppm (safe by all standards)
• Chromium (Cr): 6,567 +/- 339 ppm
• Silver (Ag): 6 +/- 3 ppm
• Bismuth (Bi): 175 +/ 15 ppm
• Palladium (Pd): 6 +/- 2 ppm
• Zinc (Zn): 48 +/- 15 ppm
• Nickel (Ni): 570 +/- 72 ppm
• Cobalt (Co): 1,347 +/- 122 ppm
• Iron (Fe): 4,614 +/- 248 ppm
• Indium (In): 13 +/- 6 ppm
• No other metals were detected.

Unglazed edge (base/ white clay substrate)

• Lead (Pb): 28 +/- 10 ppm
• Bismuth (Bi): 146 +/ 14 ppm
• Zinc (Zn): 27 +/- 13 ppm
• Iron (Fe): 3,436 +/- 225 ppm
• Indium (In): 16 +/- 6 ppm
• No other metals were detected.

As always, thank you for reading and sharing this work. I will likely update this piece soon with more information, however, in the meantime, please check out the following links if you have questions:

1. The testing methodology behind all the test results we report here on LeadSafeMama.com. 
2. A video showing you how to search the site most efficiently, given there are over 2,700 articles and pages here.
3. Here’s where you can watch my documentary feature film on childhood Lead poisoning.

Please let me know if you have any questions. With 1.165 Million unique readers in 2020 alone, I am not always able to answer each and every question personally, but I do try. 

Tamara Rubin
#LeadSafeMama