Latest news with #JournalofFoodCompositionandAnalysis
San Francisco Chronicle
25-06-2025
- Health
- San Francisco Chronicle
New study found microplastics in a place you wouldn't expect — but does it really matter?
If you're trying to avoid microplastics, picking a glass bottle over a plastic one would seem like a sensible step. But a new study from researchers in France uncovered counterintuitive results showing higher concentrations of microplastics in beverages that came from glass bottles compared to other materials — including plastic. The study, titled 'Microplastic contaminations in a set of beverages sold in France,' was conducted by researchers at French food safety agency ANSES and is published in the August edition of the peer-reviewed Journal of Food Composition and Analysis. In it, researchers looked at microplastic concentrations in drinks like water, cola, tea, lemonade, beer and wine in different types of containers, including plastic and glass bottles and metal cans. With the exception of wine, researchers found the most microplastic content in beverages that came out of glass bottles. So what's going on? How could there be more plastic in glass than plastic? The culprit: The cap. Though the bottles were made of glass, the caps were painted metal. Most paint is made of plastic. When scientists compared the color of the plastic particles in the liquid, it was the same color as the paint on the lid. That means bits of paint got scratched off the caps and went into the drinks. The study included close-up photos where you can see small scratches on the insides of the caps. That also explains why they found comparatively fewer particles in wine: They were traditional glass bottles capped with corks, not metal lids. The study was set up to examine the levels of microplastic content across different container materials, which is why the study phrases the highlighted results in that context ('Drinks in glass bottles more contaminated by microplastics'). But the conclusions indicate something more nuanced: There are multiple sources of microplastic contamination in what we eat and drink, and it's impossible to avoid them all, even if you're conscientious. The findings are consistent with what microplastics researchers around the world have found in many other studies, said Tasha Stoiber, a senior scientist with environmental advocacy nonprofit the Environmental Working Group: 'It fits in with what we know, which is that microplastics are in a range of food and beverages.' The study only looked at a handful of brands per category, and only six samples per brand, which all came from the same batch lot. If anything, experts who reviewed the study said, the findings are an indication that bottled beverage manufacturers should be examining their materials and processes and seeing whether simple steps like pre-cleaning the caps with air or liquid could meaningfully reduce microplastic concentrations. The results don't mean that you should never drink a bottled beverage ever again, or that you need to scrutinize cap or bottle material. Microplastics are in just about everything we eat and drink, said Britta Baechler, the Director of Ocean Plastics Research for Ocean Conservancy. She co-authored a study published last year that found microplastics in every type of commonly consumed protein the researchers looked at, including seafood, chicken, steak, pork and plant-based protein. She called this study 'yet another reminder of how deeply embedded plastic is in our lives and our food system.' In the grand scheme of microplastic consumption, fussing over what a bottle or cap of an individual drink is made of won't make a huge difference. Here's what experts say you can do to reduce your exposure: Avoid heating up food in plastic. Heating plastic releases more particles into food, and faster. Nonstick coating is made of plastic, so opting to cook on stainless steel or cast iron is another smart step. Avoid storing food in or eating food off of plastic. Glass, metal and ceramic are all better picks for your plates and storage containers. Eat more whole, unprocessed food and drinks. Researchers found fewer microplastics in water than bottled lemonade, tea or cola. In Baechler's study on proteins, the ones with the fewest microplastics per gram were chicken breasts and pork chops; heavily processed products like breaded shrimp, fish sticks and chicken nuggets contained the highest concentrations. Drink filtered or tap water from your home out of stainless or glass drinkware. Tap water has consistently been found to contain fewer microplastics than other sources, Baechler said. Broadly speaking, despite the findings of this study, microplastics experts still say glass bottles are better than plastic ones. Glass itself does not — cannot — shed microplastics into what you drink. And glass bottles are much more recyclable than plastic. Many plastic bottles, even ones that make it into your recycling bin, wind up not being recycled. 'We're finding microplastics in everything,' said Amelia Meyer, a co-leader of the Plastics Working Group at Stanford University. 'You can only do so much. You have to drink water.'
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Business Standard
23-06-2025
- Health
- Business Standard
Glass bottles may have more microplastics than plastic, shows French study
Most of us believe that glass bottles are a safer choice for drinking, don't we? But a new study has thrown a twist into this long-held assumption with surprising findings. Glass bottles may actually contain far more microplastics than plastic ones, in some cases, up to 50 times more. A study conducted by France's food safety agency, ANSES, titled 'Microplastic contaminations in a set of beverages sold in France', published recently in the Journal of Food Composition and Analysis, examined popular beverages like soft drinks, beer, iced tea, and water. Beer bottles topped the contamination charts. What did the study find? Researchers from ANSES analysed 56 beverage samples including water, soft drinks, iced tea, lemonade, beer, and wine, packaged in different materials like plastic, glass, brick cartons, cans, and cubitainers. They found glass bottles had the highest microplastic contamination across most beverages. On average: Waters had the lowest contamination at 2.9 MPs per litre, but glass bottles still had higher levels than plastic The researchers initially believed plastic would be the bigger culprit, but found the opposite. Which beverages contained the most microplastics? Here's a quick contamination snapshot (microplastic particles per litre): Beer (glass bottles): ~133 MPs per litre Lemonade (glass bottles): ~112 MPs per litre Cola (glass bottles): ~103 MPs per litre Iced Tea (glass bottles): ~86 MPs per litre Water (glass bottles): ~4.5 MPs per litre In contrast, plastic and canned versions of these drinks had significantly lower levels of microplastics. Why are glass bottles contaminated? It's not the glass itself, it's the caps. The study found that most microplastic particles in beverages stored in glass bottles matched the colour and chemical composition of the paint used on the outside of the bottle caps. The caps, especially those made of metal with painted coatings, are likely shedding microplastics into the drink. Experiments revealed that a simple cleaning method, blowing and rinsing the caps before sealing, could reduce microplastic contamination by about three times. Besides packaging, other sources include: Manufacturing processes: Screwing/unscrewing caps can introduce particles Environmental exposure: Poor storage and handling Paint and adhesives: Especially on caps and labels Notably, wine bottles were the exception. They had lower contamination because they were sealed with cork stoppers instead of metal caps. What are microplastics? Microplastics are tiny plastic fragments less than five millimetres in size. They are found almost everywhere, from the deepest oceans to the food and drinks we consume. Studies have even found microplastics in human tissues like the brain and placenta. Should you stop drinking from glass bottles? Not necessarily. But this study is surely a wake-up call. The perception that glass is always the safer, cleaner option isn't as straightforward as we thought. For more health updates, follow #HealthWithBS
eNCA
22-06-2025
- Health
- eNCA
More microplastics in glass bottles than plastic: study
PARIS - Drinks including water, soda, beer and wine sold in glass bottles contain more microplastics than those in plastic bottles, according to a surprising study released by France's food safety agency. Researchers have detected the tiny, mostly invisible pieces of plastic throughout the world, from in the air we breathe to the food we eat, as well as riddled throughout human bodies. There is still no direct evidence that this preponderance of plastic is harmful to human health, but a burgeoning field of research is aiming to measure its spread. Guillaume Duflos, research director at French food safety agency ANSES, told AFP the team sought to "investigate the quantity of microplastics in different types of drinks sold in France and examine the impact different containers can have". The researchers found an average of around 100 microplastic particles per litre in glass bottles of soft drinks, lemonade, iced tea and beer. That was five to 50 times higher than the rate detected in plastic bottles or metal cans. "We expected the opposite result," PhD student Iseline Chaib, who conducted the research, told AFP. AFP/File | SEBASTIEN BOZON "We then noticed that in the glass, the particles emerging from the samples were the same shape, colour and polymer composition -- so therefore the same plastic -- as the paint on the outside of the caps that seal the glass bottles," she said. The paint on the caps also had "tiny scratches, invisible to the naked eye, probably due to friction between the caps when there were stored," the agency said in a statement. This could then "release particles onto the surface of the caps", it added. - Wine fine - For water, both flat and sparkling, the amount of microplastic was relatively low in all cases, ranging from 4.5 particles per litre in glass bottles to 1.6 particles in plastic. Wine also contained few microplastics -- even glass bottles with caps. Duflos said the reason for this discrepancy "remains to be explained". Soft drinks however contained around 30 microplastics per litre, lemonade 40 and beer around 60. Because there is no reference level for a potentially toxic amount of microplastics, it was not possible to say whether these figures represent a health risk, ANSES said. But drink manufacturers could easily reduce the amount of microplastics shed by bottle caps, it added. The agency tested a cleaning method involving blowing the caps with air, then rinsing them with water and alcohol, which reduced contamination by 60 percent. The study released by ANSES was published online in the Journal of Food Composition and Analysis last month.
Express Tribune
22-06-2025
- Health
- Express Tribune
Study finds more microplastic in glass bottles than plastic
Study defied assumptions that glass would be safer than plastic. Photo: File Drinks including water, soda, beer and wine sold in glass bottles contain more microplastics than those in plastic bottles, according to a surprising study released by France's food safety agency on Friday. Researchers have detected the tiny, mostly invisible pieces of plastic throughout the world, from in the air we breathe to the food we eat, as well as riddled throughout human bodies. There is still no direct evidence that this preponderance of plastic is harmful to human health, but a burgeoning field of research is aiming to measure its spread. Guillaume Duflos, research director at French food safety agency ANSES, told AFP the team sought to "investigate the quantity of microplastics in different types of drinks sold in France and examine the impact different containers can have". The researchers found an average of around 100 microplastic particles per litre in glass bottles of soft drinks, lemonade, iced tea and beer. That was five to 50 times higher than the rate detected in plastic bottles or metal cans. "We expected the opposite result," PhD student Iseline Chaib, who conducted the research, told AFP. "We then noticed that in the glass, the particles emerging from the samples were the same shape, colour and polymer composition — so therefore the same plastic – as the paint on the outside of the caps that seal the glass bottles," she said. The paint on the caps also had "tiny scratches, invisible to the naked eye, probably due to friction between the caps when there were stored," the agency said in a statement. This could then "release particles onto the surface of the caps", it added. Wine fine For water, both flat and sparkling, the amount of microplastic was relatively low in all cases, ranging from 4.5 particles per litre in glass bottles to 1.6 particles in plastic. Wine also contained few microplastics — even glass bottles with caps. Duflos said the reason for this discrepancy "remains to be explained". Soft drinks however contained around 30 microplastics per litre, lemonade 40 and beer around 60. Because there is no reference level for a potentially toxic amount of microplastics, it was not possible to say whether these figures represent a health risk, ANSES said. But drink manufacturers could easily reduce the amount of microplastics shed by bottle caps, it added. The agency tested a cleaning method involving blowing the caps with air, then rinsing them with water and alcohol, which reduced contamination by 60 per cent. The study released by ANSES was published online in the Journal of Food Composition and Analysis last month. AFP
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GMA Network
21-06-2025
- Health
- GMA Network
More microplastics in glass bottles than plastic
PARIS, France - Drinks including water, soda, beer and wine sold in glass bottles contain more microplastics than those in plastic bottles, according to a surprising study released by France's food safety agency Friday. Researchers have detected the tiny, mostly invisible pieces of plastic throughout the world, from in the air we breathe to the food we eat, as well as riddled throughout human bodies. There is still no direct evidence that this preponderance of plastic is harmful to human health, but a burgeoning field of research is aiming to measure its spread. Guillaume Duflos, research director at French food safety agency ANSES, told AFP the team sought to "investigate the quantity of microplastics in different types of drinks sold in France and examine the impact different containers can have". The researchers found an average of around 100 microplastic particles per liter in glass bottles of soft drinks, lemonade, iced tea and beer. That was five to 50 times higher than the rate detected in plastic bottles or metal cans. "We expected the opposite result," PhD student Iseline Chaib, who conducted the research, told AFP. "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," she said. The paint on the caps also had "tiny scratches, invisible to the naked eye, probably due to friction between the caps when there were stored," the agency said in a statement. This could then "release particles onto the surface of the caps", it added. Wine fine For water, both flat and sparkling, the amount of microplastic was relatively low in all cases, ranging from 4.5 particles per liter in glass bottles to 1.6 particles in plastic. Wine also contained few microplastics -- even glass bottles with caps. Duflos said the reason for this discrepancy "remains to be explained". Soft drinks however contained around 30 microplastics per liter, lemonade 40 and beer around 60. Because there is no reference level for a potentially toxic amount of microplastics, it was not possible to say whether these figures represent a health risk, ANSES said. But drink manufacturers could easily reduce the amount of microplastics shed by bottle caps, it added. The agency tested a cleaning method involving blowing the caps with air, then rinsing them with water and alcohol, which reduced contamination by 60 percent. The study released by ANSES was published online in the Journal of Food Composition and Analysis last month. —Agence France-Presse
