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I did know that aluminum cans had a plastic liner, but I've always enjoyed teachers who can bring their subject to life and inspire their students to be interested in whatever subject they taught...and this teacher did that for me with this video.



https://youtube.com/shorts/xIVONw9Pr4w?feature=share
 
Posts: 7324 | Location: the Centennial state | Registered: August 21, 2006Reply With QuoteReport This Post
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Posts: 6880 | Location: IL, due south of the Arch | Registered: April 20, 2005Reply With QuoteReport This Post
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So what is the practical purpose of the plastic liner?


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Posts: 31162 | Location: Elv. 7,000 feet, Utah | Registered: October 29, 2012Reply With QuoteReport This Post
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quote:
Originally posted by Balzé Halzé:
So what is the practical purpose of the plastic liner?


It keeps the acid in the beverage from damaging the can and degrading the taste.
 
Posts: 2079 | Registered: April 06, 2013Reply With QuoteReport This Post
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quote:
Originally posted by Balzé Halzé:
So what is the practical purpose of the plastic liner?


It's so you get that great plastic flavor we all know and love.


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Posts: 17880 | Location: Sonoran Desert | Registered: February 10, 2011Reply With QuoteReport This Post
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Though I'm not a beverage scientist, to expand, the plastic liner probably reduces the negative affects on having the AL in contact with the beverage, which could affect the flavor, or even result in leeching of the AL into the solution over time. Also, as many beverages are somewhat acidic (Coke is known to remove paint! Eek ), it would surely eat through the AL can at some point. It's probably better for long term storage, as the plastic would likely provide a better air tight/vacuum seal than raw AL as well.


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Posts: 9646 | Location: New Hampshire | Registered: October 29, 2011Reply With QuoteReport This Post
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Posts: 31162 | Location: Elv. 7,000 feet, Utah | Registered: October 29, 2012Reply With QuoteReport This Post
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quote:
Originally posted by bdylan:
quote:
Originally posted by Balzé Halzé:
So what is the practical purpose of the plastic liner?


It keeps the acid in the beverage from damaging the can and degrading the taste.


Someone on the Youtube comments said they had a pop (soda, for everyone else) can from another country and could taste the metal to the point it was undrinkable.


 
Posts: 5490 | Location: Pittsburgh, PA, USA | Registered: February 27, 2001Reply With QuoteReport This Post
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quote:
Originally posted by nhracecraft:
Though I'm not a beverage scientist, to expand, the plastic liner probably reduces the negative affects on having the AL in contact with the beverage, which could affect the flavor, or even result in leeching of the AL into the solution over time. Also, as many beverages are somewhat acidic (Coke is known to remove paint! Eek ), it would surely eat through the AL can at some point. It's probably better for long term storage, as the plastic would likely provide a better air tight/vacuum seal than raw AL as well.

It's not just aluminum, most canned goods are in cans that have plastic coating. Veggies, tomato sauces, etc....

I wasn't really aware of this until I started paying more attention to endocrine disrupting chemicals in the things we put in and on our bodies. Most of the plastics in these cans are not harmless and contain bisphenol A (BPA).

What is BPA, and what are the concerns about BPA?

Some companies will label their cans as being BPA free.


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Posts: 20995 | Location: Montana | Registered: November 01, 2010Reply With QuoteReport This Post
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