Graphene-based edible electronics will let you make cereal circuits

Researchers at the have successfully etched edible circuits onto the surface of food, paving the way for RFID tagged edibles that can help us track food from farm to tummy. The project, which uses something called laser-induced graphene (LIG), is a process that creates a “foam made out of tiny cross-linked graphene flakes” that can carry electricity through carbon-rich products like bread,