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Looking for a specific type of hip flask

post #1 of 22
1/23/08 at 10:03pm
Thread Starter 
I like drinking wherever I might be. That's why I need a hip flash. However, it cannot be stainless steel. After you leave booze in a SS flask for a few days, it starts to absorb all sorts of things from the metal.

That's why I need a flask with a glass inner liner. Either nice leather cover or a metal shell would be cool. Also, has to be compact.

Has anyone ever seen one of these?

Been to 3 cigar/fine living stores here and all they have is crappy stainless steel.
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post #2 of 22
1/25/08 at 2:30am
Quote:
Originally Posted by 65535 View Post
I like drinking wherever I might be. That's why I need a hip flash. However, it cannot be stainless steel. After you leave booze in a SS flask for a few days, it starts to absorb all sorts of things from the metal.

That's why I need a flask with a glass inner liner. Either nice leather cover or a metal shell would be cool. Also, has to be compact.

Has anyone ever seen one of these?

Been to 3 cigar/fine living stores here and all they have is crappy stainless steel.

Just get stainless, for the following (very) good reasons:

1) 40% ethanol is not going to pull anything out of decent stainless steel

2) If it did pull anything out, it wouldn't be toxic, or comparatively, it wouldn't be toxic compared to a thousand other things you do in a given day. Composition of 316SS, from MatWeb:

Quote:
arbon, C\t0.0800 %\t0.0800 %\t
Chromium, Cr\t<= 18.0 %\t<= 18.0 %\t
Iron, Fe\t62.0 %\t62.0 %\t
Manganese, Mn\t2.00 %\t2.00 %\t
Molybdenum, Mo\t<= 3.00 %\t<= 3.00 %\t
Nickel, Ni\t<= 14.0 %\t<= 14.0 %\t
Phosphorous, P\t0.0450 %\t0.0450 %\t
Silicon, Si\t1.00 %\t1.00 %\t
Sulfur, S\t0.0300 %\t0.0300 %\t

3) It takes a lot to eat this stuff, again courtesy MatWeb:

Quote:

Applications: food and pharmaceutical processing equipment, marine exterior trim, surgical implants, and industrial equipment that handles the corrosive process chemicals used to produce inks, rayons, photographic chemicals, paper, textiles, bleaches, and rubber.

Corrosion Resistance: better corrosion resistance than 302 and 304; resists sodium and calcium brines; hypochlorite solutions, phosphoric acid; and the sulfite liquors and sulfurous acids used in the paper pulp industry.

4) The best one -- your spirit likely sat in SS during it's production at a significantly higher proof, as SS lines and tanks are so extensively used in spirits, wine, and beer production that they're de rigeur. If it was going to leach something out, that's when it would happen!
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post #3 of 22
1/25/08 at 10:33pm
Has anyone actually tasted a metallic taste after leaving alcohol in their flask? I've left vodka and bourbon in my stainless flask for at least a week, drank it, and it was fine.

Does anyone know of a fairly sturdy flask that can be sat on without deforming? I've already almost cracked a thin-walled steel flask from carrying it in the back pocket of my jeans....
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post #4 of 22
1/26/08 at 12:04am
I have a few SS flasks, when I first bought them I used to carry a couple of types of liquor while traveling, and it would sometimes be a week or two before I drank. I remember once, at a trade show, offering somebody a drink, and pouring pretty premium boourbon (probrably makers mark) from my flask into a glass, and it had turned a really nasty looking thick green. I didn't taste it, but it looked pretty bad. my thought, at the time, was that I usually didn't use a glass, so I probrably had been drinking liquor that looked like that and just didn't know.

now, I only put liquor into a flask if I will be drinking it that day.
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post #5 of 22
1/26/08 at 12:13pm
globetrotter, I honestly think I'm going to go stick some Old Crow in a flask for a week or so and see what happens.....
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post #6 of 22
1/26/08 at 12:24pm
The green stuff was likely a product of galvanic corrosion between cheap SS and some non-SS steel in the cap. I'm pretty certain green stainless can also be caused by separation of chromium from the steel (which, essentially, renders it normal carbon steel) but it takes alot. High amounts of hard radiation will do it.
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post #7 of 22
1/26/08 at 1:48pm
Quote:
Originally Posted by Huntsman View Post
The green stuff was likely a product of galvanic corrosion between cheap SS and some non-SS steel in the cap.

I'm pretty certain green stainless can also be caused by separation of chromium from the steel (which, essentially, renders it normal carbon steel) but it takes alot. High amounts of hard radiation will do it.

my flask was old USSR military surplus, so who knows what the fuck was in it.
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post #8 of 22
1/26/08 at 2:16pm
Quote:
Originally Posted by globetrotter View Post
my flask was old USSR military surplus, so who knows what the fuck was in it.
Huntsman-"High amounts of hard radiation will do it." Maybe we've accidentally found where they hid all that radioactive material? In their hip flasks!
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post #9 of 22
1/26/08 at 6:31pm
Thread Starter 
Quote:
Originally Posted by globetrotter View Post
I remember once, at a trade show, offering somebody a drink, and pouring pretty premium boourbon (probrably makers mark) from my flask into a glass, and it had turned a really nasty looking thick green.

now, I only put liquor into a flask if I will be drinking it that day.

That is exactly what happened to me.

So the consensus is that a high quality SS flash won't exhibit this?
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post #10 of 22
1/26/08 at 7:00pm
Quote:
Originally Posted by globetrotter View Post
my flask was old USSR military surplus, so who knows what the fuck was in it.

Oh, in that case I absolutely bet that was what happened! Galvanic corrosion is some nasty process and impure steels are a breeding ground.

Quote:
Originally Posted by jkennett View Post
Huntsman-"High amounts of hard radiation will do it."

Maybe we've accidentally found where they hid all that radioactive material? In their hip flasks!

And you know what else? Several oxides and salts of Uranium are bright green! Globe, you better check that stuff out! j/k.

Quote:
Originally Posted by 65535 View Post
That is exactly what happened to me.

So the consensus is that a high quality SS flash won't exhibit this?

Well, I don't know about the consensus, but I'm an engineer with a specialty in materials science (admittedly my concentration is in hyperelastic materials). If you wanted to be really anal about it, I'd look for a type 316 Stainless -- it has the highest corrosion resistance of all the standard grades, and is used in production food service applications and industrially, in what are called 'sour service' applications (the nastier stuff).

What you should be able to easily find are flasks in Type 304 stainless (which is second only to 316 in corrosion resistance). 304 is commonly called 18/8 in foodservice, and though 18/8 technically is a broader category of steel than 304, it's still highly corrosion resistant.

Do make sure the cap appears to be the same material, with perhaps, an o-ring of rubber to ensure the seal. Otherwise, you might be able to get some galvanic action going on.

~ Huntsman
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post #11 of 22
1/27/08 at 12:51pm
Quote:
Originally Posted by 65535 View Post
Been to 3 cigar/fine living stores here and all they have is crappy stainless steel.

When you say crappy stainless steel, do you just mean the no-name bulk brand flasks?

Colibri flasks are stainless steel, but are of pretty decent quality, they might be a good compromise option for you.
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post #12 of 22
1/28/08 at 4:27am
Regarding glass-lined flasks, I've only seen them vintage. They are usually in sterling or plate, and sometimes have an exotic skin covering. As can be assumed, they are somewhat costly.
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post #13 of 22
1/28/08 at 3:37pm
I seem to go through flasks fairly quickly so I only buy the no-name stainless steel ones. Only once has a flask cracked on me.
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post #14 of 22
1/28/08 at 3:44pm
Dude, get help.
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post #15 of 22
1/28/08 at 3:57pm
Sigg makes a flask with an anodized aluminum interior. Never tried it but... maybe? I like the idea of those leather wine bladders a la the Sun Also Rises.
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