this post was submitted on 21 Dec 2024
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UAB research has characterized in detail how polymer-based commercial tea bags release millions of nanoplastics and microplastics when infused. The study shows for the first time the capacity of these particles to be absorbed by human intestinal cells, and are thus able to reach the bloodstream and spread throughout the body.

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[–] Uriel_Copy@lemmy.world 45 points 2 years ago (1 children)

This is one I wish I hadn't read 😮‍💨

[–] lolrightythen@lemmy.world 3 points 2 years ago

No shit. I drink detox tea all the time.

[–] chicken@lemmy.dbzer0.com 15 points 2 years ago (3 children)

Is there a way to tell whether teabags use these materials? It's not really something listed in the ingredients

[–] lemmy_outta_here@lemmy.world 10 points 2 years ago (3 children)

I have bad news: even "non-plastic" tea bags have plastic fibres woven into the paper/cloth. These fibres allow the material to be sealed with heat. Best to use loose leaf and a strainer.

[–] amzd@lemmy.world 4 points 2 years ago (3 children)

even “non-plastic” tea bags have plastic fibers woven into the paper/cloth.

Source? For example the clipper website says they don’t use plastic, how do you know it still has plastic? https://www.clipper-teas.com/tea-talk/plastic-free-tea-bags/

[–] PumaStoleMyBluff@lemmy.world 10 points 2 years ago

Read that link carefully, there's a lot of flowery language but they do not say their bags are plastic-free.

[–] Nythos@sh.itjust.works 7 points 2 years ago (2 children)

There is also this page that says which tea brand don’t use plastics with sources to the announcement.

Unless they were talking about PLA plastics which from a (very) quick search seems to pose no risk

[–] lemmy_outta_here@lemmy.world 4 points 2 years ago (2 children)

I have more bad news: [https://www.sciencedirect.com/science/article/pii/S0048969724007307](Are bioplastics safe? Hazardous effects of polylactic acid (PLA) nanoplastics in Drosophila)

[–] Nythos@sh.itjust.works 2 points 2 years ago (1 children)

Your study is from 1/4/24 the one I linked is from 26/6/24

Or am I just being a muppet here?

[–] lemmy_outta_here@lemmy.world 4 points 2 years ago

Silly me. Glad that is resolved.

[–] Shortstack@reddthat.com 4 points 2 years ago* (last edited 2 years ago)

Findings from a new meta-study sponsored by Holland Bioplastics, Futerro, TotalEnergies Corbion, and NatureWorks reveal that PLA ‘eventually’ fully hydrolyses and biodegrades in the environment

This is the summary blurb at the top of the article.

I would be very skeptical of ingesting something and believing it harmless if the study finds that it eventually breaks down in the environment, let alone it’s clearly funded by a company with ‘bioplastics’ in the company name.

[–] lemmy_outta_here@lemmy.world 5 points 2 years ago* (last edited 2 years ago)

National institute of health: https://pmc.ncbi.nlm.nih.gov/articles/PMC10389239/ If a company makes a claim that their bags are 100% plastic free, that is great. Just don't assume that paper bag = no plastic.

By the way: the clipper website says they use PLA, which is a plastic - just not a petroleum plastic. Its health effects are being investigated.

[–] TipRing@lemmy.world 4 points 2 years ago

I drink Barry's which say they are 100% plastic free and biodegradable, but now I wonder how to find out if that is true.

[–] NotMyOldRedditName@lemmy.world 2 points 2 years ago* (last edited 2 years ago) (1 children)

So my tea bags that have a little staple to keep it together might be okay?

Edit: The other kind I have is the top folded over and the string tied through it, but no staple.

[–] lemmy_outta_here@lemmy.world 2 points 2 years ago

A staple is probably a good sign. I think the thermosealed ones have a crimped edge

[–] iAvicenna@lemmy.world 1 points 2 years ago

some brands write on their packaging that the bags are plant based. pukka is one of them, PG tips another.

[–] RustyHeater@lemmy.world 1 points 2 years ago

Linked Source here. Sample 3 is a round teabag which is a distinct feature of Tetley tea. Although I'm sure other brands may use that design too.

[–] Serinus@lemmy.world 5 points 2 years ago

Well, I guess I better not throw out all my tea bags just before Christmas.

"Oh. You got me... cancer. Thanks."

[–] rickdg@lemmy.world 4 points 2 years ago

Call me plastic-man 🤪

[–] captainlezbian@lemmy.world 1 points 2 years ago

Yeah that study convinced my wife and I to switch to lose leaf