This study addresses significant concerns highlighted by the European Parliament regarding the decline of the Italian tomato processing industry, which possess a threat to Italy's culinary heritage and global market position. This research offers a solution that leverages blockchain technology to enhance transparency, traceability and operational efficiency within the tomato supply chain. By integrating Solidity, Remix IDE, MetaMask wallet and Sepolia Testnet, our proposed model establishes a robust blockchain-based smart-contract system. This system actively engages cultivators, wholesalers, retailers and end-users facilitating seamless real-time updates across the entire supply chain. Implementing this model in key tomato-producing regions such as Apulia, utilizing platforms like Mainnet or Hyperledger Fabric, aims to stabilize the industry. Furthermore, this study promotes automating smart contracts, integrating IoT devices and developing decentralized applications (DApps). This strategy ensures transparency for end-users, enhances organic food availability and mitigates contamination risks. This study also recommends government involvement to upgrade transportation and storage facilities, aiming to reduce post-harvest losses. This research establishes the groundwork for the sustainable management of the Italian tomato processing industry. [ABSTRACT FROM AUTHOR]