Abstract
Food traceability systems are crucial tools to support the food industry in managing the movement of inputs and products in the food production chain. Such systems improve efficiency tracing foodborne outbreaks and management of recalls, and quality management (identification and control of hazards and defects, adulteration, fraud, and authentication). In this regard, several technologies have been developed to detect and document food safety and product integrity. Tracking products using bar codes, radiofrequency identification (RFID), wireless sensor networks, and DNA barcoding have been developed over time to ensure the traceability of products across the food supply chain. Digital technologies play an important role as key enablers of traceability in the food supply chains. In particular, the creation of a distributed and decentralized digital ledger that encompasses data can improve trust and transparency of product quality and safety. This was achieved by establishing the blockchain system where data integration among multiple actors in the food supply chain provided more transparency, efficiency, security, and safety can be established in the food supply chain. This chapter discusses the roles of RFID and blockchain that play in food traceability.