XRF test results for two de Buyer Pans, Made in France (sent in by a reader in Canada)

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For those new to the Lead Safe Mama 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).

  • Tamara owns and runs Lead Safe Mama, LLC — a community collaborative woman-owned small business for childhood Lead poisoning prevention and consumer goods safety.
  • Since 2009, Tamara has been using XRF technology (a scientific testing method) using the exact instrumentation employed by the U.S. Consumer Product Safety Commission to test consumer goods for toxicants (specifically heavy metals â€” including Lead, Cadmium, Mercury, Antimony, and Arsenic).
  • Since July of 2022, the work of Lead Safe Mama, LLC has been responsible for five product recalls (FDA and CPSC).
  • All test results reported on this website are science-based, accurate, and replicable.
  • Items that Lead Safe Mama, LLC reports on are tested multiple times to confirm the results published (for each component tested).
  • Tamara’s work was featured in Consumer Reports Magazine in February 2023 (March 2023 print edition) and The Guardian in November 2023.

Published: December 18, 2023

Hey Lead Safe Mama friends, I am doing my best to catch up with reporting on consumer goods XRF testing done earlier this year! To make this go more quickly (so the people who sent in these items for testing — and the rest of the Lead Safe Mama community — will have these test results after months of being very patient!), I am going to focus for the next couple of days on just publishing the test results (without any of the customary additional specific information), and will update the articles with additional information once I am all caught-up with uploading results.
 

As background for each of these articles, I wanted to readers to have the the following context:


In reporting the test results for the two pans tested, I am distinguishing them (left to right based on the image above) as the older/ used pan (left) and the newer/ shinier/ silver-colored pan (right).

Reading #1) Shiny Silver pan — Food Surface Reading

  • Lead (Pb): non-detect
  • Cadmium (Cd): non-detect
  • Mercury (Hg): non-detect
  • Arsenic (As): non-detect
  • Iron (Fe): 996,000 +/- 1,600 ppm
  • Manganese (Mn): 3,336 +/- 423 ppm
  • No other metals were detected in consumer goods/ test all mode.

Reading #2) Older pan — Food Surface Reading

  • Lead (Pb): non-detect
  • Cadmium (Cd): non-detect
  • Mercury (Hg): non-detect
  • Arsenic (As): non-detect
  • Iron (Fe): 996,900 +/- 1,700 ppm
  • Manganese (Mn): 2,369 +/- 416 ppm
  • No other metals were detected in consumer goods/ test all mode.

Reading #3) Newer (Shiny) pan — Handle Reading (coated metal)

  • Lead (Pb): non-detect
  • Cadmium (Cd): non-detect
  • Mercury (Hg): non-detect
  • Arsenic (As): non-detect
  • Titanium (Ti): 123,100 +/- 3,900 ppm
  • Vanadium (V): 30,200 +/- 1,700 ppm
  • Chromium (Cr); 3,328 +/- 675 ppm
  • Iron (Fe): 801,000 +/- 64,000 ppm
  • Manganese (Mn): 8,099 +/- 1,043 ppm

Reading #4) Older pan — Handle Reading (coated metal)

  • Lead (Pb): non-detect
  • Cadmium (Cd): non-detect
  • Mercury (Hg): non-detect
  • Arsenic (As): non-detect
  • Titanium (Ti): 95,900 +/- 2,600 ppm
  • Vanadium (V): 22,500 +/- 1,400 ppm
  • Chromium (Cr); 2,306 +/- 530 ppm
  • Iron (Fe): 844,500 +/- 3,400 ppm
  • Manganese (Mn): 7,193 +/- 771 ppm

Reading #5) Newer (Shiny) pan — Handle, Attachment Points/ Rivets Reading (outside of food surface)

  • Lead (Pb): non-detect
  • Cadmium (Cd): non-detect
  • Mercury (Hg): non-detect
  • Arsenic (As): non-detect
  • Titanium (Ti): 16,700 +/- 1,200 ppm
  • Vanadium (V): 3,857 +/- 587 ppm
  • Chromium (Cr); 664 +/- 241 ppm
  • Iron (Fe): 968,900 +/- 2,100 ppm
  • Manganese (Mn): 4,351 +/- 536 ppm

Reading #6) Older pan — Handle, Attachment Points/ Rivets Reading (outside of food surface)

  • Lead (Pb): non-detect
  • Cadmium (Cd): non-detect
  • Mercury (Hg): non-detect
  • Arsenic (As): non-detect
  • Titanium (Ti): 22,000 +/- 2,400 ppm
  • Vanadium (V): 3,781 +/- 1,089 ppm
  • Chromium (Cr): 801 +/- 459 ppm
  • Iron (Fe): 963,600 +/- 4,300 ppm
  • Manganese (Mn): 4,281 +/- 986 ppm

Reading #7) Newer (Shiny) pan — Handle, Silicone Logo Reading

  • Lead (Pb): non-detect
  • Cadmium (Cd): 21 +/- 7 ppm*
  • Mercury (Hg): non-detect
  • Arsenic (As): non-detect
  • Titanium (Ti): 12,500 +/- 1,800 ppm
  • Iron (Fe): 1,503 +/- 189 ppm
  • Zinc (Zn): 212 +/- 31 ppm
  • Niobium (Nb): 589 +/- 28 ppm
  • Balance: 985,000 ppm

Reading #8) Older pan — Handle, Silicone Logo Reading

  • Lead (Pb): non-detect
  • Cadmium (Cd): 19 +/- 6 ppm*
  • Antimony (Sb): 31 +/- 13 ppm*
  • Mercury (Hg): non-detect
  • Arsenic (As): non-detect
  • Titanium (Ti): 15,900 +/- 1,600 ppm
  • Zinc (Zn): 212 +/- 28 ppm
  • Niobium (Nb): 513 +/- 27 ppm
  • Balance: 983,200 ppm

Reading #9) Newer (Shiny) pan — Handle, Attachment Points/ Rivets Reading (inside of food surface)

  • Lead (Pb): non-detect
  • Cadmium (Cd): non-detect
  • Mercury (Hg): non-detect
  • Arsenic (As): non-detect
  • Titanium (Ti): non-detect
  • Vanadium (V): non-detect
  • Chromium (Cr); 488 +/- 304 ppm
  • Iron (Fe): 995,400 +/- 3,600 ppm
  • Manganese (Mn): 3,855 +/- 828 ppm

Reading #10) Older pan — Handle, Attachment Points/ Rivets Reading (inside of food surface)

  • Lead (Pb): non-detect
  • Cadmium (Cd): non-detect
  • Mercury (Hg): non-detect
  • Arsenic (As): non-detect
  • Titanium (Ti): non-detect
  • Vanadium (V): non-detect
  • Chromium (Cr); 382 +/- 244 ppm
  • Iron (Fe): 993,200 +/- 2,500 ppm
  • Manganese (Mn): 2,982 +/- 640 ppm
  • Copper (Cu): 778 +/- 386 ppm
  • Zinc (Zn): 2,436 +/- 471 ppm

*The Cadmium and Antimony levels found are “safe by all standards” and not concerning at all given they were only found in the yellow silicone logo on the handle of the pans.

Tamara Elise Rubin
Owner — Lead Safe Mama, LLC

 

~ End ~

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6 Comments

  1. How terrible is manganese? Looking at the readings of these de buyer pan they seem ok but I dont know anything about manganese and I find it difficult to find the definite answer. Would you say they are safe to use? Ive been fooled by creuset this whole time so now I have to move on to stainless steel / cast iron it sounds like and I’m finding it confusing. I do own a de buyer carbon steel pan already.

    Thanks for your help

  2. Invaluable testing – did this method involve boiling in an acidic solution for an hour for testing of the liquid?
    Thanks again

  3. What is the minimum PPM for arsenic that the XRF will detect?
    This is the first test I’ve seen of carbon steel pans. Recently there have been some concerns with carbon steel pans after an agency in France issues a recall on Matfer Carbon steel pans due to arsenic and cadmium. The manufacturer has avoided questions about the PPM of Cr and As, so seeing some real numbers for a clean carbon steel pan is nice.

    1. 1 or 2 ppm.

      I bought and tested the pans you mention and did not find any Cadmium or Arsenic. I have not had a chance to write up the report yet.

      T

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