Sustainable Cold Chain Management of Dairy Foods: Energy Efficiency, Monitoring, and Logistics Strategies

Abstract

The sustainable management of the dairy cold chain is crucial for maintaining freshness while reducing energy use, emissions, and waste during milk handling. This article introduces a framework for sustainable dairy chain management, focusing on technological, operational, and policy mechanisms to enhance freshness, conserve energy, reduce emissions, and minimize waste. The key measures include variable-speed motor compressors, smart refrigeration controls, and CO2 refrigerants. IoT sensors enable real-time temperature monitoring, alerts, analytics, predictive maintenance, and spoilage detection. Packaging innovations involve biodegradable materials, vacuum-insulated panels, phase-change materials, lightweight polymer blends, and smart packaging with time-temperature indicators (TTIs) or radio-frequency identification (RFID), supported by temperature testing. Logistics strategies emphasize route optimization, multimodal transport, strategic hubs, regional centers, stakeholder training, and sustainability. The integration of renewable energy with battery storage and energy management systems reduces emissions, supported by policy incentives. This article examines circular economy pathways such as whey valorization, wastewater treatment, biogas production, energy-efficient storage, IoT, blockchain, and capacity building. These actions lower the carbon footprint, improve reliability, reduce product loss, and enhance energy security in regions with limited infrastructure.