Would you try ?
Food scientists working for the US military have come up with a dried food ration that can be rehydrated by adding dirty water - or even urine.
The invention represents a breakthough for membrane technology and ready meal packaging.
UK-based New Scientist magazine reports that the ration comes in a pouch containing a filter, which, according to the US Combat Feeding Directorate, is capable of removing 99.9 per cent of bacteria and most toxic chemicals from the water used to rehydrate it.