Collecting and utilizing food data across the life cycle is difficult and expensive because of their movement across the multiple stakeholders on the agrifood supply chain. Interestingly, product centric approaches that present effective solutions to analyze product lifecycle have been problematic to deploy across multiple industries. Blockchain has been adopted in the food system and traceability and brings many advantages for provenance, compliance, authenticity and quality. However most of the applications are permissioned and mostly at the benefits of a private owner or consortium. Accumulated data therefore cannot be reused by all stakeholders and no common data model can be built. This lack of cooperation has an impact on farmers, where data governance can be a direct source of income and social benefits, and an impact on researchers that cannot reuse and improve food security models, study sustainability or carbon emission without relying on private companies. Food security is a public good and our proposal introduces a permissionless food product centered approach based on NFT to protect public information and farmers stability.