Are Beer Bottle Caps Helping to Spread Microplastics?
Briefly

A study revealed alarming levels of microplastics in beverages, particularly in beer from glass bottles. Researchers found that microplastics were predominantly sourced from bottle caps, which matched in color and composition with the collected particles. Interestingly, glass bottles showed higher microplastic contamination than plastic bottles. The findings indicate a significant concern for public health, particularly for consumers of drinks packaged in glass. More research is necessary to fully understand the impact of these microplastics on human health and to identify effective solutions for contamination reduction.
Microplastics' presence in places from remote locations on Earth to parts of the human body resembles an alarming treasure hunt. New studies indicate health risks.
A study published in August 2025 found that glass bottles had the highest microplastic levels, with beer being particularly affected.
Caps were suspected to be the main source of contamination in beverages, correlating with the color and composition of the isolated microplastic particles.
Despite expectations, microplastic levels in glass bottles exceeded those in plastic bottles, raising concerns about beverage packaging and contamination.
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