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A comment on I told a cat food company how much they’d save by using taller cans (2020). Parent comment

Re:I told a cat food company how much they’d save by using t... by JoeAltmaier on Saturday February 06, 2021 @10:45AM (#26047259)
I guess I'm reluctant to eat acidic stuff out of plastic. But I suppose tin isn't much better.

I just reduce my own tomatoes if I need paste.

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Re:I told a cat food company how much they’d save by using t... by 4gotunameagain on Saturday February 06, 2021 @11:08AM (#26047430)
All cans are lined with plastic, also a reason why you shouldn't use metal utensils to scrape all the contents out of the can
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Re:I told a cat food company how much they’d save by using t... by JoeAltmaier on Saturday February 06, 2021 @01:20PM (#26048556)
Enamel, surely?
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Re:I told a cat food company how much they’d save by using t... by trcollinson on Saturday February 06, 2021 @10:47AM (#26047273)
Oh! The tubes from Cento, which is a particular good brand, are metal. I understand the acidic substance from plastic concern. Though reducing your own is a good idea as well. If you grow the tomatoes they will be significantly better.
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Re:I told a cat food company how much they’d save by using t... by JoeAltmaier on Saturday February 06, 2021 @11:06AM (#26047416)
They have that at WalMart! Sounds good, will give it a try. The case-of-12 description is a little concerning. Its apparently 'Adult Unisex'. Not sure what they think I'm going to do with the paste...
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Re:I told a cat food company how much they’d save by using t... by riversflow on Saturday February 06, 2021 @11:31AM (#26047605)
>I guess I'm reluctant to eat acidic stuff out of plastic.

It might help to realize that plastics are extremely resistant to acids. Hazardous Industrial acid products, far stronger than anything a consumer can purchase, are stored in Polypropylene barrels. Generally speaking plastics are considerably more resistant to inorganic chemicals than even specially formulated metal alloys.[1](link even lists the resistant data for tomato juice :)) Additionally, metal used for canning is usually(always?) lined with plastic[2] to keep metals from leaching. Ironically canned foods with bpa liners are one of the biggest vectors of BPA intake we know of.[3]

[1]https://www.usplastic.com/catalog/files/charts/LG%20CC.pdf [2]https://www.ewg.org/research/bpa-canned-food [3]https://www.sciencedirect.com/science/article/abs/pii/S00139...

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Re:I told a cat food company how much they’d save by using t... by jiofih on Saturday February 06, 2021 @11:14AM (#26047472)
They are all metal tubes, and I guess the lining, which is plastic, is exactly the same as in the cans.
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Re:I told a cat food company how much they’d save by using t... by coryrc on Saturday February 06, 2021 @12:21PM (#26048025)
Possibly ironically, the plastic lining cans is usually toxic but regular tubes are made of polyethylene which is safe!
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