Glyn Moody<p>Metal bottle caps ‘surprising’ source of <a href="https://mastodon.social/tags/microplastic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>microplastic</span></a> contamination, study finds - <a href="https://www.theguardian.com/environment/2025/jul/21/metal-bottle-caps-microplastic-contamination" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">theguardian.com/environment/20</span><span class="invisible">25/jul/21/metal-bottle-caps-microplastic-contamination</span></a> "The surprising source of the contamination – a polyester-based paint on the glass bottles’ metal caps."</p>