Plastic might be the last ingredient you would ever add to a cookie recipe. But a team of researchers is looking to change that. They’ve programmed yeasts to turn plastic and agricultural waste into edible proteins and flavoring molecules, creating a treat from trash. The technology not only offers a new upcycling method, but could also sustain life in disaster zones or manned deep-space missions. The researchers will present their results at ACS Fall 2026.

By using microbes to break down plastic, and baker's yeast to introduce vanilla flavor, researchers have turned waste into food.

Would you eat a cookie that was made from plastic? Technically, we're all ingesting an ungodly amount of plastic already, in the form of micro- and nanoscopic particles in our…