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Glass Bottles May Leak Up to 50 Times More Microplastics, Scientists Say
Food & Wine ^ | July 7, 2025 | Stacey Leasca

Posted on 07/07/2025 3:07:42 PM PDT by nickcarraway

France’s food safety agency found that glass-bottled drinks, such as iced tea, lemonade, and beer, exhibited some of the highest contamination levels.

-A French food safety agency study found that drinks in glass bottles contained more microplastic particles per liter than those in plastic bottles or cans.

-The researchers traced the microplastics to the exterior paint on plastic-sealed caps, which released particles into the drink.

-Despite being bottled in glass, both water and wine showed fewer microplastics, although the researchers couldn’t determine exactly why.

The evidence showing the harmful effects of microplastics is building up. Study after study shows that microplastics are appearing in our land, food, and even in our brains. While research on how microplastics affect human health is still developing, there is evidence to suggest they negatively affect our gut, liver, and possibly even our DNA. But if you've switched to glass to avoid microplastics, you might want to reconsider.

In late June, France's food safety agency released the findings of a surprising study, which showed that drinks sold in glass bottles contain more microplastics than those in plastic bottles.

Guillaume Duflos, research director at the French food safety agency, explained to AFP that the researchers aimed to "investigate the quantity of microplastics in different types of drinks sold in France and examine the impact different containers can have."

5 Simple Swaps to Reduce Microplastic Exposure in Your Kitchen Their work examined the "impact of different containers," including plastic, glass, brick, can, cubitainer, and included water, tea, lemonade, soda, beer, and wine. And while it found microplastics in all the containers studied, the team concluded that "Counterintuitively, drinks sold in glass bottles were more contaminated by [microplastics]."

But how?

"Experiments have shown that these [microplastics] originate from the exterior paint of capsules," the team wrote, indicating that the plastics are likely coming from the plastic caps on top of the bottle. They added that "a cleaning step before encapsulation can significantly reduce beverage contaminations. However, cleaning does not remove all the [microplastics] from the capsule."

"We expected the opposite result," Iseline Chaib, a PhD student who conducted the research, additionally shared with 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."

And it wasn't by a small margin. The study found that glass bottles of soda, iced tea, beer, and lemonade contained about 100 microplastic particles per liter, which Phys.org explained is up to 50 times higher than the number detected in plastic or cans.

These findings shouldn't surprise regular readers of Food & Wine. As we previously reported, a 2024 study found that the more you open and close a soda bottle, the more microplastics are introduced to the drink through the cap. The researchers discovered that with each additional opening, microplastic levels rose, reaching 46 particles for Coca-Cola by the 20th opening and 62 for Schweppes.

There was, however, some good news in this latest study. The team found that water contained fewer microplastics, as did wine, even in glass bottles. The researchers couldn't determine why.


TOPICS: Food; Health/Medicine; Science
KEYWORDS: fakenews; food; glass; ifhfakescience; microplastics

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1 posted on 07/07/2025 3:07:42 PM PDT by nickcarraway
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To: ConservativeMind

Ping


2 posted on 07/07/2025 3:07:58 PM PDT by nickcarraway
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To: nickcarraway

I love me some microbrewed plastiques.


3 posted on 07/07/2025 3:10:52 PM PDT by crusty old prospector
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To: nickcarraway

Another Thing I can’t understand
and I’m to old to Try.
I live On Arrowhead Bottled Water.


4 posted on 07/07/2025 3:13:13 PM PDT by Big Red Badger (ALL Things Will be Revealed !)
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To: nickcarraway; FRiends

“A French food safety agency study found that drinks in glass bottles contained more microplastic particles per liter than those in plastic bottles or cans.”

Well, that’s not going to bode well for their HUGE WINE IN GLASS BOTTLES INDUSTRY! Who didn’t pay the hush money to The French Mob, I wonder? ;)

As for me, it’s Vodka straight out of the recycled ‘Wine In A Box Bag’ from now on! I’m not taking any chances; safety FIRST!

*SMIRK*

P.S. We’re all going to die. From something. One way or another. Nobody gets out alive! Just sayin’...


5 posted on 07/07/2025 3:18:40 PM PDT by Diana in Wisconsin (I don't have, 'Hobbies.' I'm developing a robust Post-Apocalyptic skill set.)
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To: nickcarraway

Go back to metal caps, unpainted.


6 posted on 07/07/2025 3:20:37 PM PDT by Flaming Conservative ((Pray without ceasing))
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To: nickcarraway

“The researchers traced the microplastics to the exterior paint on plastic-sealed caps, which released particles into the drink.”

Are US bottled beer caps of the same construction?


7 posted on 07/07/2025 3:23:20 PM PDT by Paladin2 (YMMV)
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To: Flaming Conservative

And cork seals


8 posted on 07/07/2025 3:24:07 PM PDT by kaktuskid
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To: nickcarraway

Don’t plastic bottles have...plastic caps?


9 posted on 07/07/2025 3:29:09 PM PDT by Buttons12 ( )
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To: nickcarraway

Every coffee maker is plastic.

Just sayin’.


10 posted on 07/07/2025 3:33:12 PM PDT by Mr. N. Wolfe
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To: nickcarraway

“Glass Bottles May Leak Up to 50 Times More Microplastics, Scientists Say”

Glass Bottles May Leak Up to 50 Times More Microplastics, DEI Scientists Say

There, fixed it


11 posted on 07/07/2025 3:41:07 PM PDT by antidemoncrat (In a way ge is right as)
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To: kaktuskid
"And cork seals"

Yep, that's what I was going to type.

But then the environmentalists would be bewailing 'the rape of the cork trees'.

12 posted on 07/07/2025 3:45:34 PM PDT by LegendHasIt
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To: nickcarraway

I like the plastics in my wine to have a bold, complex elegant aroma. With a crisp, oak, fruity, zesty finish.


13 posted on 07/07/2025 3:45:59 PM PDT by week 71
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To: nickcarraway

If this is true, it has to be as a result of the caps.

Vacuum tubes form the 20’s and 30’s routinely work, which they could not do if their vacuums went to air, and there’s a helluva lot more pressure differential on a vacuum tube than on a bottle of soda at atmospheric pressure.


14 posted on 07/07/2025 3:59:56 PM PDT by Attention Surplus Disorder (The Democrat breadlines will be gluten-free. )
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To: Mr. N. Wolfe
"Every coffee maker is plastic."

After breaking several glass coffee presses, I bought
an indestructible stainless-steel coffee press.

No more breakage, no plastic, just good coffee.

15 posted on 07/07/2025 4:11:39 PM PDT by chief lee runamok ( Le Flâneur @Large)
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To: nickcarraway
They just make this sh*t up out of whole cloth. Nothing is too ridiculous or bizarre for these clowns.

16 posted on 07/07/2025 4:17:15 PM PDT by Governor Dinwiddie ( O give thanks unto the Lord, for He is gracious, and his mercy endures forever. — Psalm 106)
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To: nickcarraway

the French still full of sh*t, it seems


17 posted on 07/07/2025 4:17:38 PM PDT by pissant ((Deport 'em all))
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To: nickcarraway

As usual, a sensational headline to hide the news. Glass bottles are good, cheap lids are not. Also, they must be talking about infinitesimally small amounts of contaminate.


18 posted on 07/07/2025 4:17:45 PM PDT by GingisK
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To: Nick

mark


19 posted on 07/07/2025 4:19:50 PM PDT by Bigg Red ( Lord, make me an instrument of your peace.)
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To: nickcarraway

Didn’t have that problem with the old fashioned cork seals.


20 posted on 07/07/2025 4:21:31 PM PDT by fella ("As it was before Noah so shall it be again," )
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