Costco

Costco Kirkland Organic Hemp Hearts (Product of Canada): 2024 Lab Report – Testing For Lead, Mercury, Cadmium, & Arsenic

December 15, 2024December 20, 2024

Quick note from Tamara Rubin: We were so excited to learn that this product tested non-detect for Lead, Mercury, Cadmium, & Arsenic – and especially excited given the low thresholds of detection for the lab report for this particular product was so very low. Please scroll down to the bottom of this article to…

Costco Kirkland Organic Creamy Peanut Butter (packaged in plastic jars) tests positive for Cadmium, Lead, & Arsenic: November 2024 Laboratory Report

November 2, 2024December 20, 2024

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Quick note from Tamara Rubin: I have been informing readers about the concern for toxicants in this particular product for more than five years now, prompted initially when I was house-sitting for my friend Carissa and saw this product on the counter in her kitchen and decided to test the jar for toxicants using…

Like all other USA-made wheat flours we have tested, Costco’s Organic Unbleached All-Purpose Flour tested positive for unsafe levels of Cadmium. Read the August 2024 laboratory report.

September 13, 2024December 20, 2024

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Summary: This All-Purpose, Organic flour from Costco tested positive for 12 parts per billion (ppb) Cadmium. A level of 12 ppb is 240% of the “Action Level” for Cadmium proposed within the Baby Food Safety Act of 2021 (2.4 times the level considered dangerous for consumption by children). Scroll down to read more about…

XRF Test Results for Certified International Blue Glazed Ceramic Bowl (purchased at Costco c. 2017 or Later), Made in China

December 26, 2023December 28, 2023

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This is an ad-free article. We are publishing this article as ad-free to make it easier for you to read. If you would like to support our independent consumer goods testing by contributing (which will also help us keep our more widely-read articles ad-free!), click here. Thank you! For those new to the Lead Safe…

Artificial (c. 2008) Christmas tree from Costco: 5,896 ppm Lead (90 ppm is unsafe for kids)

November 30, 2018February 19, 2024

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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…

Antimony (Sb) Found in Kirkland (Costco) Organic Peanut Butter Plastic Jars

October 21, 2018December 20, 2024

14 Comments

After publishing THIS POST (which has since unexpectedly gone viral!) simply recommending that folks not purchase peanut butter in plastic jars & instead purchase peanut butter in glass whenever possible, a lot of people responded with links and information either supporting or attempting to dismiss or refute my concerns. One of my readers posted several…

#LeadedAppliances: c. 2010 Cuisinart Blender

January 3, 2017January 3, 2017

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Cuisinart Blender Circa 2010. Purchased at Costco. Center nut on top of blade tested positive with 7,941 parts per million (ppm) lead. It is the yellowish leaded brass circle in the center of the blade. No mercury, no cadmium. Tested with an XRF —- #XRFTesting #LeadedDishes • #LeadSafeDishes For more safer choices in dishware options,…