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Army rations rehydrated by urine
newscientist.com ^ | July 2004 | Duncan Graham-Rowe

Posted on 08/15/2005 2:05:08 PM PDT by steel_resolve

Would you eat food cooked in your own urine? Food scientists working for the US military have developed a dried food ration that troops can hydrate by adding the filthiest of muddy swamp water or even peeing on it.

The ration comes in a pouch containing a filter that removes 99.9 per cent of bacteria and most toxic chemicals from the water used to rehydrate it, according to the Combat Feeding Directorate, part of the US Army Soldier Systems Center in Natick, Massachusetts. This is the same organisation that created the "indestructible sandwich" that will stay fresh for three years (New Scientist print edition, 10 April 2002).

The aim is to reduce the amount of water soldiers need to carry. One day's food supply of three meals, weighs 3.5 kilograms but that can be reduced to about 0.4 kilograms with the dehydrated pouches, says spokeswoman Diane Wood.

The pouch - containing chicken and rice initially - relies on osmosis to filter the water or urine. When two solutions of different concentrations are separated by a semipermeable membrane, with gaps that allow only water molecules to pass through, the water is drawn to the more concentrated side.

Hungry soldier

The membranes are made of thin sheets of a cellulose-based plastic, with gaps between the fibres that are just 0.5 nanometres across, too small for bacteria to pass through.

A hungry soldier pours dirty water into one end of a foil sachet containing two inner pouches separated by the membrane. The water seeps through the membrane into the dehydrated food on the other side. As it dissolves large molecules in the food, it creates a very high concentration solution. The osmotic pressure created then draws more water through the membrane.

Hydration Technology of Albany, Oregon, which makes the membrane, says soldiers should only use urine in an absolute emergency because the membrane is too coarse to filter out urea.

The body will not find this toxic over the short term, says Ed Beaudry, an engineer with HTI, but rehydrating food this way in the long term would cause kidney damage.


TOPICS: War on Terror
KEYWORDS: army; barf; cary; ewww; pee; rations
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What is our country coming to when our nations finest have to cook their meals with pee? (*Okay, old article, but worth a chuckle.)
1 posted on 08/15/2005 2:05:09 PM PDT by steel_resolve
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To: steel_resolve; pissant

I thought we already had canned peas.


2 posted on 08/15/2005 2:06:59 PM PDT by Enterprise ("Islam is not a religion, but rather a means of world conquest" - ALAN BURKHART.COM)
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To: steel_resolve

Not only does the MRE taste like s##t, now this!


3 posted on 08/15/2005 2:07:21 PM PDT by Peter vE (Ceterum censeo: delenda est Carthago.)
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To: steel_resolve

Eewwww.....


4 posted on 08/15/2005 2:07:27 PM PDT by DesignerChick
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To: steel_resolve

They could have at least added "Filtered" urine to the title.


5 posted on 08/15/2005 2:07:43 PM PDT by PeteB570
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To: steel_resolve

Gives "who pi$$ed in your chili?" new meaning...


6 posted on 08/15/2005 2:08:29 PM PDT by WestTexasWend
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To: Peter vE

I really like the Chili and Macaroni MRE's at longlifefood.com

Tasty.. And no urine.


7 posted on 08/15/2005 2:08:33 PM PDT by G32
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To: steel_resolve
Hydration Technology of Albany, Oregon, which makes the membrane, says soldiers should only use urine in an absolute emergency because the membrane is too coarse to filter out urea.

Ok, what kind of emergency would require pi$$ing on it, rather than eating it dry & crunchy?

8 posted on 08/15/2005 2:08:42 PM PDT by Sax
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To: steel_resolve

Kind of takes the fun out of peeing on a tree----might be skipping ones own lunch.


9 posted on 08/15/2005 2:09:24 PM PDT by cherokee1 (skip the names---just kick the buttz)
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To: steel_resolve

Visualize whirled pees.


10 posted on 08/15/2005 2:09:31 PM PDT by Nachum
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To: steel_resolve

Well, you probably wouldn't have to add any salt, FWIW.


11 posted on 08/15/2005 2:09:33 PM PDT by GaltMeister (“All that is necessary for the triumph of evil is that good men do nothing.”)
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To: steel_resolve
Food scientists working for the US military have developed a dried food ration that troops can hydrate by adding the filthiest of muddy swamp water or even peeing on it.

And it still tastes better than


12 posted on 08/15/2005 2:09:55 PM PDT by martin_fierro (Lodi Idol)
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To: steel_resolve

YUK!


13 posted on 08/15/2005 2:10:07 PM PDT by Fiddlstix (This Tagline for sale. (Presented by TagLines R US))
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To: steel_resolve

I can't wait for the new recipe for S.O.S.


14 posted on 08/15/2005 2:10:56 PM PDT by TruthShallSetYouFree (Abortion is to family planning what bankruptcy is to financial planning.)
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To: steel_resolve

Visual World Pee


15 posted on 08/15/2005 2:11:24 PM PDT by DainBramage
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To: steel_resolve

What a wiz of an idea.


16 posted on 08/15/2005 2:11:28 PM PDT by My2Cents ("The essence of American journalism is vulgarity divested of truth." -- Winston Churchill)
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To: steel_resolve

All I am saying, is "give pees a chance."


17 posted on 08/15/2005 2:11:29 PM PDT by Billthedrill
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To: Nachum

lol way ahead of me.


18 posted on 08/15/2005 2:12:03 PM PDT by DainBramage
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To: Peter vE
>> Not only does the MRE taste like s##t, now this

I have been through dozens of cases of MRE's, I never had a problem with anything other than the tuna casserole.

I have about 50 of those bad boys that I will only eat after I eat my dogs.
19 posted on 08/15/2005 2:12:07 PM PDT by mmercier
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To: steel_resolve

Add beer first


20 posted on 08/15/2005 2:12:20 PM PDT by bmwcyle (We broke Pink's code and found a terrorist message.)
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