# Beer and the color of bottles

**URL:** <https://boards.straightdope.com/t/beer-and-the-color-of-bottles/569287>\
**Category:** Cecil's Columns/Staff Reports\
**Created:** [January 28, 2011, 10:57am UTC](https://boards.straightdope.com/t/beer-and-the-color-of-bottles/569287 "2011-01-28T10:57:43Z")\
**Posts on this page:** 5\
**Page:** 2

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**Author:** ![SGT42](https://avatars.discourse-cdn.com/v4/letter/s/b9e5f3/32.png) [@SGT42](https://boards.straightdope.com/u/SGT42)\
**Post date:** [February 4, 2011, 1:10pm UTC](https://boards.straightdope.com/t/beer-and-the-color-of-bottles/569287/21 "2011-02-04T13:10:33Z")

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> [@silenus](#):
>
> That’s probably their “Belgian” offering, if I’m translating the name properly. Lots of Belgian beers are bottled in opaque containers.

The name ‘Confraria’ means ‘Brotherhood’ or ‘Fraternity’.  
I think it was chosen in order to remember the beers brewed in monasteries in Europe.

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**Author:** ![Fowardpass](https://avatars.discourse-cdn.com/v4/letter/f/f07891/32.png) [@Fowardpass](https://boards.straightdope.com/u/Fowardpass)\
**Post date:** [February 4, 2011, 5:28pm UTC](https://boards.straightdope.com/t/beer-and-the-color-of-bottles/569287/22 "2011-02-04T17:28:04Z")

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> [@Vashbul](#):
>
> A study conducted by engineering science students at Loyola College in Maryland suggested that the liquid content of aluminium bottles stays slightly colder than the liquid content of glass bottles when allowed to warm at room temperature.[2] These results were not corroborated by a 2005 study at Bucknell University, which found that “the fluid in the aluminium bottle cools much faster than the glass bottle, and once removed from a cold source and exposed to room temperature, the glass bottle remained cooler longer than the aluminium bottle.” [3] This conclusion is consistent with the fact that the thermal conductivity of aluminium (237 W/(m·K))[4] is significantly higher than that of glass (1.1 W/(m·K))[4].
> 
> (Okay, that’s just some shit from Wikipedia, so you can ignore it, but I don’t think the aluminum bottles are double-walled, but wouldn’t it be nice if they were and they could whomp them out cheaply, I think it would keep your beer cool, like, forever.)

Drink faster, problem solved.

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**Author:** ![TravisFromOR](https://avatars.discourse-cdn.com/v4/letter/t/cc9497/32.png) [@TravisFromOR](https://boards.straightdope.com/u/TravisFromOR)\
**Post date:** [February 9, 2011, 8:49am UTC](https://boards.straightdope.com/t/beer-and-the-color-of-bottles/569287/23 "2011-02-09T08:49:09Z")

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> [@aceplace57](#):
>
> The new aluminum bottles are another solution. I’ve bought beer in them and they work well. I get the impression they are double walled for insulating. Beer stays very, very cold in them. I’d buy them in these bottles all the time if they get the price equal to regular cans.
> 
> [http://www.brobible.com/files/images/buzz/aluminum%20bottle.jpg](http://www.brobible.com/files/images/buzz/aluminum%20bottle.jpg)

I’ve never seen good beer in the aluminum bottles though.

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**Author:** ![AaronX](https://avatars.discourse-cdn.com/v4/letter/a/7bcc69/32.png) [@AaronX](https://boards.straightdope.com/u/AaronX)\
**Post date:** [February 9, 2011, 10:14am UTC](https://boards.straightdope.com/t/beer-and-the-color-of-bottles/569287/24 "2011-02-09T10:14:37Z")

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> [@TravisFromOR](#):
>
> I’ve never seen good beer in the aluminum bottles though.

Because they’re opaque?

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**Author:** ![Nametag](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/nametag/32/406_2.png) [@Nametag](https://boards.straightdope.com/u/Nametag)\
**Post date:** [February 9, 2011, 3:50pm UTC](https://boards.straightdope.com/t/beer-and-the-color-of-bottles/569287/25 "2011-02-09T15:50:06Z")

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The problem with aluminum bottles is the same as with aluminum cans – to drink from the container, you have to put your mouth on metal. This has never bothered me, but it ruins the taste for a lot of people.

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