uses JavaScript to provide the best possible experience for our content, but your browser has it disabled. Learn how to enable it here.



No. What that company is describing has nothing to do with detecting elemental metal contamination (as we do) or removing that contamination. The company is describing the way they detect relatively large metal fragments that may be introduced during processing. Such fragments would then, typically, be removed by sifting.

As shown in our Dark Chocolate, Cocoa Powder and Nibs Review, heavy metal contamination is very common in cocoa and cacao powders and some dark chocolates. This contamination (typically with cadmium and/or lead) is not due to metal fragments but, most likely, the absorption by cocoa plants of metals in their environment (likely from pesticides and/or volcanic soil). Unfortunately, the levels of cadmium found are often very high -- suggesting that intake should be limited, and it does not seem possible to selectively remove these metals.

For information about how to choose the best quality cocoa powder and dark chocolate with the least contamination see Getting cocoa flavanols without contaminants and our Top Picks among products in the Dark Chocolate, Cocoa Powder and Nibs Review.

Join today to unlock all member benefits including full access to all CL Answers and over 1,400 reviews.

Join Now

Join now at

Loading Comments…