Especially in this time with sourcing in new countries with new suppliers of raw materials, traceability and origin verification is so important and so challenging. Simply testing a product is not enough, and not possible in this complex world. New ideas, tools, and modules are necessary to ensure quality and safety. A synthetic, scalable microbial spore system that identifies object provenances could be part of a solution.
Determining where an object has been is a fundamental challenge for human health, commerce, and food safety. Location-specific microbes in principle offer a cheap and sensitive way to determine object provenance.