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Home > News > Army rations rehydrated by urine

July 22nd, 2004

Army rations rehydrated by 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. 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

New Scientist

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