November 12, 2024 | Engineering Archive |
Wageningen University reviewed cooling methods that contribute to the postharvest preservation of fruit and vegetable crops in low- and middle-income settings. Effective cooling is essential for reducing postharvest losses, improving food and nutrient security, and enabling smallholder farmers to access distant markets. Although mechanical vapor-compression systems are widely recognized, they are often difficult to implement in LMICs due to financial, infrastructural, and operational barriers.
To address this gap, the study compiled a broad range of active and passive cooling technologies, including lesser-known options and auxiliary systems such as thermal storage and improved ventilation. The review describes the physical principles behind these technologies and evaluates their advantages and limitations.
A selection matrix was developed to help stakeholders compare technologies based on multiple criteria, including cost, installation requirements, scalability, maintenance needs, energy demand and supply, cooling performance, suitability for different crops, and market adoption potential.
The findings highlight that no single solution fits all contexts; instead, appropriate cooling strategies must consider local technical, economic, environmental, and social conditions. The study provides a structured framework to guide decision-making and promote wider adoption of suitable cooling solutions for improved postharvest management in LMICs.
