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The amount of Food that can be brought from Earth to Mars is limited, and the logistics of a continued food transport for the long term is expensive.

An automomous colony needs it's own food production. The following reasons apply:

Food that can be brought from Earth

  • Several varieties of dehydrated food.
  • Natural food that containes large amounts of fat and carbohydrates, such as nuts.
  • Concentrated fruit juice.
  • Light weight, high energy foods with a long shelf-life.

Local Production Methods

  • It must be taken into account that the production of 1 kg meat requires 7 to 16 kg of vegetable matter.
  • In addition, it takes 2000 to 3000 litres of water to produce 1 kg of meat, it only takes 100 litres of water to grow 1 kg of grain.[1] Water will be a very valuable commodity on Mars, so the first generation of settlers may well be vegetarian by necessity.

External Links

  • [ Kate Thompson: What you can do resource - facts and figures about resource consumption for food production.