NASA is developing 3-D food printers, they want to use it on long-range spaceships with years-long missions.
The company making them has hopes the printer will one day revolutionize food production across the globe, minimizing waste and potentially ending world hunger.
Instead of ink, the printer will use oils and powders containing things like sugars, protein, complex carbohydrates to create food.
An example from Contractor's proposal explains how pizza would be made: The dough layer would be printed first, and then tomato powder, water, and oil mixed together while the printer's base plate begins cooking the dough. The tomato mixture is then printed on top.
Researchers think that food will become very much more expensive in the near future, and the average person will need a more affordable option. Along those lines, alternative food sources that could be used by the printer to create new food products including algae, grass, beet leaves and insects.
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