A team of investigators at France’s state food agency has discovered that some glass bottles have more microplastics in them than other containers, including those made of plastic.
The “surprising finding” came about in tests carried out by the Anses Laboratory for Food Safety, whose researchers fingered paint on bottle caps as the likeliest culprit for the counterintuitive outcome.
“The level of microplastics was found to be higher in glass bottles than in other containers,” the team said, with glass bottles of cola, lemonade, iced tea and beer having at least five times the amount of particles than plastic bottles or cans.
“We were expecting the opposite result when we compared the level of microplastics in different drinks sold in France,” said Iseline Chaïb of the Aquatic Food Safety Unit in Boulogne-sur-Mer, which carried out the study at the Anses Laboratory for Food Safety.
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