Plastic Waste Transformed into Edible Space Biscuits

Researchers have developed a novel method to recycle plastic waste into a form of sustenance, as part of a NASA initiative to develop food for future space missions. The process involves genetically modified yeasts that consume polyethylene terephthalate (PET) plastic, breaking it down into edible proteins, fats, and flavorings.

This nutrient slurry is then utilized by 3D printers to create disc-shaped food items, described as "cookies." While not yet tasted by the research team pending human testing approval, the aroma has reportedly received high marks. This innovation is part of NASA's Deep Space Food Challenge, seeking solutions for feeding astronauts during lengthy voyages, such as a three-year trip to Mars.

The technology has potential applications beyond space travel, including use in extreme terrestrial environments like submarines or disaster zones, and as a mainstream ecological solution to combat plastic pollution and rising food demand. Projections indicate global food demand will increase significantly by 2050, with a substantial portion of the population at risk of hunger.

Currently, the cost of producing these food items is $60 per kilogram. However, the team anticipates that increased efficiency and scaled production will lower costs over time. Public acceptance of eating food derived from plastic may be a hurdle to widespread adoption.