Toxic Substances Found in Alcoholic Beverage Bottles

Bottles of alcohol.

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Bottles of beer, wine, and spirits contain potentially harmful levels of toxic elements, such as lead and cadmium, in their enameled decorations, a new study shows. Researchers at the University of Plymouth analyzed both the glass and enameled decorations on a variety of clear and colored bottles readily available in shops and supermarkets.

They showed that cadmium, lead, and chromium were all present in the glass, but at concentrations where their environmental and health risks were deemed to be of low significance.

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However, the enamels were of greater concern, with cadmium concentrations of up to 20,000 parts per million (ppm) in the decorated regions on a range of spirits, beer, and wine bottles, and lead concentrations up to 80,000 ppm in the décor of various wine bottles. The limit for lead in consumer paints is 90 ppm.

The study also showed the elements had the potential to leach from enameled glass fragments, and when subjected to a standard test that simulates rainfall in a landfill site, several fragments exceeded the U.S. Model Toxins in Packaging Legislation and could be defined as “hazardous.”

Published in Environmental Science and Technology, the research was carried out by Associate Professor (Reader) in Aquatic Geochemistry and Pollution Science, Dr. Andrew Turner.

He has previously shown that the paint or enamel on a wide variety of items — including playground equipment, second-hand toys, and drinking glasses — can feature levels of toxic substances that are potentially harmful to human health. Dr. Turner said:

For the current research, bottles of beer, wine, and spirits were purchased from local and national retail outlets between September 2017 and August 2018, with the sizes ranging from 50 ml to 750 ml.

They were either clear, frosted, green, ultraviolet-absorbing green (UVAG), or brown with several being enameled over part of the exterior surface with images, patterns, logos, text, and/or barcodes of a single color or multiple colors.

Out of the glass from 89 bottles and fragments analyzed using x-ray fluorescence (XRF) spectrometry, 76 were positive for low levels of lead and 55 were positive for cadmium. Chromium was detected in all green and UVAG bottles, but was only in 40 percent of brown glass and was never in clear glass.

Meanwhile, the enamels of 12 out of 24 enameled products tested were based wholly or partly on compounds of either or both lead and cadmium. Dr. Turner added:

Provided by: University of Plymouth [Note: Materials may be edited for content and length.]

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