{"id":724,"date":"2025-09-16T16:20:27","date_gmt":"2025-09-16T14:20:27","guid":{"rendered":"https:\/\/stopmicroplastiche.it\/acqua-in-bottiglia-perche-le-microplastiche-si-nascondono-anche-nelle-bottiglie-di-vetro\/"},"modified":"2025-10-30T17:01:16","modified_gmt":"2025-10-30T16:01:16","slug":"acqua-in-bottiglia-perche-le-microplastiche-si-nascondono-anche-nelle-bottiglie-di-vetro","status":"publish","type":"post","link":"https:\/\/stopmicroplastiche.it\/en\/acqua-in-bottiglia-perche-le-microplastiche-si-nascondono-anche-nelle-bottiglie-di-vetro\/","title":{"rendered":"Bottled water: Why microplastics hide, even in glass bottles"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>Glass or plastic: Which is really safer?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">For years, glass has been considered the healthier and more eco-friendly alternative to plastic \u2013 elegant, recyclable and perceived as \u201cpure\u201d.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, recent studies show that even <strong>glass bottles contain <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span><\/strong>, often in greater quantities than those found in plastic or cans.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A study conducted by <strong>ANSES<sup>1<\/sup> (the French agency for health safety)<\/strong> <strong>revealed that glass-bottled beverages show higher levels of plastic particles compared with other types of packaging<\/strong>. A surprising result \u2013 one that overturns the assumptions of many consumers.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What the results show<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The findings from the <strong>ANSES<\/strong> study are clear:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In carbonated drinks, iced tea and beer sold in <strong>glass bottles<\/strong>, an average of <strong>100 particles per litre were found<\/strong>.<\/li>\n\n\n\n<li>The same beverages packaged in <strong>plastic bottles or cans<\/strong> contained <strong>5 to 50 times fewer<\/strong> particles.<\/li>\n\n\n\n<li><strong>Water<\/strong> showed lower values overall: around <strong>4.5 particles per litre<\/strong> in glass bottles and 1.6 in plastic.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong>Why there are <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span> in glass bottles: the real culprit<\/strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The ANSES study highlights that the issue isn\u2019t the glass itself, but rather the <strong>metal caps coated with varnish<\/strong>. During manufacturing and storage, the caps rub against one another.<strong>\u00a0This friction causes invisible micro-scratches that release plastic fragments, which are then found in the drinks.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The main source of <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span> in bottled water is therefore the varnish used on the caps. <\/strong>The particles detected in both water and soft drinks effectively matched the colour and chemical composition of the coating used on the caps <strong>\u2013 clear proof that the contamination originates precisely there.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Another study<em><strong><sup>2<\/sup><\/strong><\/em> published in <strong>PNAS<\/strong>, detected up to <strong>240,000 particles per litre<\/strong> in bottled water samples \u2013 most of which <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Extremely small plastic particles, smaller than 0.1 \u00b5m. They are more difficult to detect and can penetrate cells and deep tissues.&lt;\/p&gt;\">nanoplastics<\/span>, far smaller and potentially more harmful, capable of crossing cellular barriers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The fact that <strong><span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span> are also present in glass-bottled water<\/strong> is a warning sign: Daily exposure is real, and it\u2019s important to be aware of it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What can producers do?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The studies mentioned above suggest several practical solutions to reduce contamination:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Clean the caps<\/strong> before sealing (even a simple blast of compressed air can reduce particle levels)<\/li>\n\n\n\n<li><strong>Change the materials and varnishes<\/strong> used for coatings<\/li>\n\n\n\n<li><strong>Reduce friction<\/strong> between caps during storage and transport<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Simple measures, but ones that could in themselves significantly lower microplastic levels.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Tap water or bottled water: Which is better?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A question many people ask: What\u2019s the <strong>best water to drink<\/strong> \u2013 tap or bottled?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Italy continues to lead the ranking in Europe (and the world) for bottled water consumption. In 2023, total consumption reached around <strong>14.7 billion litr<\/strong>es<strong><sup>3<\/sup><\/strong>. Although the <strong>Italian water supply network is well-regulated and safe<\/strong>, only 29% of Italians report drinking tap water daily (ISTAT data<strong><sup>4<\/sup><\/strong>), while 43% rely exclusively on bottled water<strong><sup>5<\/sup><\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Consuming bottled water<\/strong> <strong>has a major environmental impact<\/strong>; it is estimated that around <strong>13.5 billion bottles<sup>6<\/sup><\/strong>\u00a0(plastic and glass) are used in Italy every year.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A recent <strong>Altroconsumo<\/strong> test<strong><sup>7<\/sup><\/strong> (on bottled mineral water) also found, <strong>in some brands, traces of undesirable substances such as<\/strong> <strong>PFAS<\/strong> \u2013 <strong>highly persistent<\/strong> chemical pollutants that <strong>do not degrade easily<\/strong> and tend to <strong>accumulate<\/strong> in living organisms. For this reason, they are often called \u201cforever chemicals\u201d. Although not <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span>, the results confirm that packaged water is not automatically free from environmental contaminants.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">According to <strong>Legambiente<sup>8<\/sup><\/strong>, <strong>tap water supplied through the public network<\/strong> often <strong>contains fewer <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span><\/strong> and has a much lower environmental impact than bottled water.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Choosing your water means choosing mindfully<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The issue of <strong><span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span> in bottled water<\/strong> encourages us to look beyond appearances and rethink long-standing habits. There is no such thing as a \u201cperfect\u201d container \u2013 what matters is having clear information and adopting informed behaviour.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Supporting this view is a very recent study<strong><sup>9<\/sup><\/strong> (published in August 2025 in Science Direct), which analysed the <strong>presence of <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span> in various beverages<\/strong> sold in France, including water, soft drinks, tea, lemonade, beer and wine.\u00a0<strong>The research team set out not only to measure the degree of contamination in these beverages, but also to determine whether the type of packaging played a role<\/strong> \u2013 be it plastic, glass, cans, cartons or other materials. Specifically, with regard to <strong>bottled water<\/strong>, the study showed, as noted earlier, that <strong>glass is not always the \u201ccleanest\u201d choice<\/strong>; <strong>in fact, glass bottles tended to contain more <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span> than plastic ones<\/strong>. Mineral and sparkling waters also showed slightly higher contamination levels than still or spring waters. Another interesting finding was that the differences did not depend solely on the packaging material, but also on the <strong>brand<\/strong> \u2013 some waters contained higher concentrations, others lower. In all cases, the <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span> found were tiny and variable in size, but nonetheless always present, confirming that <strong>no container is truly \u201cimmune\u201d to the problem<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The environmental organisation <strong>Agir pour l\u2019Environnement<\/strong>, in a 2022 study<strong><u><sup>10<\/sup><\/u><\/strong> carried out on several <strong>brands of mineral water<\/strong>, had already found that <strong>78% of bottles contained <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span><\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What can we do in our everyday lives?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The following everyday practices can be helpful in <strong>minimising exposure to <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span><\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Choose tap water<\/strong> whenever it is safe and regularly monitored in your area.<\/li>\n\n\n\n<li><strong>Use certified home filters<\/strong> to improve the quality of drinking water.<\/li>\n\n\n\n<li>If opting for <strong>bottled water<\/strong>, <strong>check the type of cap<\/strong> and <strong>choose brands that use closures without synthetic varnishes<\/strong>.<\/li>\n\n\n\n<li>Avoid <strong>leaving bottles in the sun or near heat sources<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Remember: <strong>glass doesn\u2019t automatically mean the absence of <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span><\/strong>, and plastic isn\u2019t always the worse option. The right question is no longer \u201cIs glass better than plastic?\u201d but rather:\u00a0<strong>\u201cWhich choice truly reduces environmental impact \u2013 and my exposure to <span class=\"glossario-term\" data-definition=\"&lt;p&gt;Plastic fragments ranging from 0.1 \u00b5m to 5 mm in size, originating from primary microplastics (pellets, cosmetic microspheres) or secondary ones (breakdown of larger plastics). They appear in various forms \u2013 spheres, fibres, irregular fragments \u2013 and are now ubiquitous in air, water, soil and living organisms.&lt;\/p&gt;\">microplastics<\/span>?\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a id=\"_msocom_1\"><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anche l\u2019acqua in bottiglia di vetro pu\u00f2 contenere microplastiche. Scopri perch\u00e9, cosa dicono gli studi e come fare scelte pi\u00f9 consapevoli.<\/p>\n","protected":false},"author":3,"featured_media":702,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-724","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-living-sustainably"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bottled water: Why microplastics hide, even in glass bottles - Stop Microplastiche<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/stopmicroplastiche.it\/en\/acqua-in-bottiglia-perche-le-microplastiche-si-nascondono-anche-nelle-bottiglie-di-vetro\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bottled water: Why microplastics hide, even in glass bottles - Stop Microplastiche\" \/>\n<meta property=\"og:description\" content=\"Anche l\u2019acqua in bottiglia di vetro pu\u00f2 contenere microplastiche. 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