Study Finds Most Caffeinated Coffees Safe, But Some Contain Pesticide Byproduct and Packaging Toxins

Most caffeinated coffees are safe to drink, but some contain small amounts of potentially harmful contaminants, according to new testing by the nonprofit Clean Label Project.

The investigation analyzed 45 popular coffee brands from around the world, testing for pesticides, heavy metals, mycotoxins, and plasticizers such as phthalates. The results showed most contaminants were well below European Union safety limits per 6-ounce serving, meaning coffee remains generally safe.

However, traces of glyphosate and its byproduct aminomethylphosphonic acid (AMPA) were found. AMPA, which can persist in the environment longer than glyphosate, appeared in all 12 organic coffee samples tested, likely due to runoff from nearby conventional farms. AMPA has been linked in studies to DNA damage and liver inflammation.

Phthalates, chemicals linked to reproductive and hormonal issues, were also detected, with the highest levels in canned coffee, followed by pods, then bags. Clean Label says further research will examine how packaging may contribute to contamination.

Heavy metal content varied by region, with Hawaiian coffee showing the highest levels due to volcanic soil. Acrylamide, a compound formed during roasting that has been linked to cancer in animals at high doses, was found in all samples. Medium roasts had the highest acrylamide levels, followed by light and then dark roasts.

Despite these findings, Clean Label Project Executive Director Molly Hamilton emphasized that coffee is still one of the cleanest product categories they have tested. She advised consumers to choose either dark or very light roasts, opt for bagged or pod coffee over canned, and consider the coffee’s country of origin to minimize heavy metal exposure.

The National Coffee Association criticized the report, saying decades of research show coffee drinkers live longer, healthier lives.

Credit: CNN Newsource

Explore: NBCPalmSprings.com, where we are connecting the Valley.