Hard to swallow? The future of snacking may be 3D-printed cookies made from upcycled plastic

Nasa-funded project uses yeasts to turn plastics and other waste into edible proteins, fats and flavourings Cookies produced from upcycled plastic may sound like something straight out of a dystopian sci-fi plot. But researchers say that they have succeeded in creating such a product as part of a Nasa-funded project aimed at feeding astronauts on future space missions. The technology uses specially designed yeasts to transform plastics and agricultural waste into edible proteins, fats and…