Study reveals microplastic and toxic chemical leaching from disposable paper cups into hot beverages
image: Article graphical abstract
Credit: Biswajit Patra, Rohit Gautam, Mihir Tanay Das, Surya Narayan Pradhan, Soumya Ranjan Dash, Arun Kumar Mohanta.
Summary:
A 2024 experimental study published in LabMed Discovery investigated the release of microplastics and associated contaminants from disposable paper cups into hot beverages. Researchers found that when exposed to hot water (85°C), the plastic lining of paper cups degraded within minutes, releasing microplastics (ranging 56–126 µm) and hazardous chemicals like phthalates, heavy metals (Pb, Cr, Ni), and endocrine disruptors (e.g., styrene, vinyl chloride). Using advanced techniques (UV-Vis, GC-MS, FTIR, SEM, ICP-OES), the team confirmed the presence of polyethylene, polypropylene, and other polymers in beverages, alongside toxic additives linked to health risks such as endocrine disruption, oxidative stress, and organ damage. The study highlights the urgent need to replace disposable cups with safer alternatives (e.g., glass, steel) and calls for stricter regulations on food packaging materials.
Key Findings:
Rapid Contamination: Microplastics and chemicals leached within 20 minutes of hot liquid contact.
Health Risks: Identified compounds (e.g., phthalates, heavy metals) are tied to cancer, hormonal disruption, and inflamation.
Analytical Methods: Combined UV-Vis, GC-MS, and SEM validated contamination, emphasizing the need for multi-technique approaches.
Recommendation: Avoid disposable paper cups for hot beverages; opt for reusable, non-plastic containers.
Why It Matters: Unique study that quantifies real-time microplastic release from paper cups, bridging gaps in food safety and environmental health research.