We find out how bacteria are salvaging metal from electronic waste. We taste the protein-rich food additive that is made from bacteria. Plus, we explore how bacteria are helping to reduce the impact of farming on the environment.

Presenter: Myra Anubi

Reporter: Rosie Blunt

Series producer: Tom Colls

Sound mix: Hal Haines

Editor: Penny Murphy

Thanks to Prof Sebastien Farnaud, Coventry University

Email: [email protected]

Image: Computer illustration of bacteria (Getty images)