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Pee Protein. Where No Hu-Man Has Gone Before.

Pee Protein. Where No Hu-Man Has Gone Before. visual media slide

Strap in: the European Space Agency (ESA) has just signed a deal with Finnish startup Solar Foods to test a protein powder made from microbes, air, electricity and urea (yes, that urea, found in urine) aboard the International Space Station; giving a whole new meaning to pee protein!!


It’s one of those storylines prompting the question: “Is this just a bit weird?”, but weird because fascinating. The powder, called Solein (already being used in some Earth-bound food products), uses a gas-fermentation system to convert hydrogen, CO₂ (and nitrogen from urea) into protein.


Yet here’s why it matters: for long-haul space missions (Moon, Mars) the cost, logistics and waste-loop of feeding people from Earth become untenable, so turning waste + air + electricity into food is radical innovation. And if it works in orbit, it might rebound onto Earth food systems opening up myriad of food applications.



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