Recent research by French scientists revealed that drinks in glass bottles contain unexpectedly high levels of microplastics, about 100 particles per liter, which is up to 50 times more than those in plastic bottles. This finding is contrary to expectations. The contaminants were traced back to the paint on the caps sealing the glass bottles, highlighting a significant source of microplastic contamination in beverages, particularly in carbonated drinks and sweetened beverages. Various types of drinks showed different levels of contamination, raising questions about consumer safety.
We expected the opposite result. We then noticed that in the glass, the particles emerging from the samples were the same shape, color and polymer composition - so therefore the same plastic - as the paint on the outside of the caps that seal the glass bottles.
There's a wide range of microplastic content depending on beverage type. Both sparkling and flat water clocked in with the lowest microplastic content.
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