Study Finds Coffee Generally Safe Despite Presence of Some Contaminants
Most coffee is safe to drink, with contaminants typically below safety limits. However, certain chemicals like glyphosate, phthalates, and heavy metals are present in small amounts. Learn how to choose the cleanest coffee options.
Recent research indicates that the majority of coffee consumed today is safe, with contaminants present at levels well below established safety thresholds. The investigation, conducted by the nonprofit Clean Label Project, analyzed coffee samples from 45 popular brands sourced from countries including Brazil, Colombia, Costa Rica, Ethiopia, Guatemala, Kenya, Peru, and Hawaii. Over 7,000 tests were performed to detect pesticides, heavy metals, plasticizers, and mold toxins.
The findings showed that while some contaminants were detected, most were found at minimal levels. For instance, traces of glyphosate, a common herbicide, and its byproduct AMPA were present, with AMPA levels raising concerns due to its environmental persistence and potential links to DNA damage and liver inflammation. Phthalates, chemicals associated with reproductive issues, cancer, and asthma, were detected particularly in canned coffee and pods. Heavy metals like lead, mercury, and arsenic varied by region, with Hawaiian coffees showing higher concentrations possibly due to volcanic soil influence.
All samples contained small amounts of acrylamide, a chemical formed during roasting that has been linked to cancer in animal studies. Interestingly, medium roasts had the highest levels of acrylamide, followed by light and dark roasts. Organic coffees generally demonstrated lower contaminant levels; however, all organic samples still contained AMPA, which may be due to runoff from nearby conventional farms.
Experts highlight that most contaminants are present at levels that are considered safe, but they suggest conscious choices can help reduce exposure. Recommendations include selecting darker or very light roasts, choosing coffee in bags or pods, and being mindful of the coffee's origin. While some packaging options may contribute to higher chemical levels, overall, coffee remains one of the cleaner product categories tested.
The study aims to inform consumers on how to select the safest coffee options rather than discourage consumption. As research continues, future studies will explore the impact of packaging and production methods on contaminant levels.
Source: https://medicalxpress.com/news/2025-08-coffee-safe-contaminants.html
Stay Updated with Mia's Feed
Get the latest health & wellness insights delivered straight to your inbox.
Related Articles
Innovative Framework Developed for Classifying Processed Foods Based on Health Impact
Researchers introduce a new, science-based system for classifying processed foods by their health impact, helping consumers and manufacturers make informed choices and advancing nutrition science.
Texas Enacts Landmark Law Requiring Warning Labels on Food Additives
Texas has implemented a groundbreaking law requiring warning labels on foods containing artificial dyes and additives, setting a precedent for nationwide food safety regulations and consumer awareness.
Expert Pediatric Tips for Managing Childhood Constipation
Learn essential pediatric tips for managing childhood constipation through diet, hydration, and medical treatments, ensuring comfort and digestive health for your child.
Benefits of Plant-Based Diets in Reducing Multimorbidity Risk: Insights from a Multinational Study
A large European study shows that adopting a plant-based diet can significantly lower the risk of developing multiple chronic diseases, including cancer and metabolic conditions, in adults of all ages.