Insulated multilayer packaging to reduce heat transfer during cold-chain distribution

Overview

This research investigates how multilayer packaging materials can significantly reduce heat transfer into frozen products during distribution. By slowing the rate at which heat moves from the surrounding environment into the product, the approach extends the window of time during which the product stays near its optimal temperature before melting or undergoing texture-degrading phase transitions. The goal is to preserve product quality—such as texture and taste—without requiring major changes to existing logistics or handling processes.

Technical specifications

• Core concept: Reduce thermal conductivity of packaging to slow heat transfer between the external environment and the frozen product, much like double-pane windows insulate buildings.
• Material approach: Evaluate multilayer packaging constructions that combine materials to lower overall thermal conductivity while remaining practical for existing filling and distribution lines.
• Experimental method: Freeze a substance such as water or ice cream inside containers made from candidate packaging materials and monitor temperature over time as it melts. Measurements will be taken both at the packaging surface and inside the frozen product using wireless thermometers.
• Environmental conditions: Test packaging performance under varied transport and staging conditions to capture realistic distribution scenarios.
• Modeling: Develop a predictive model to estimate melting time as a function of packaging material and environmental conditions, enabling selection of the best-performing materials for longer preservation windows.

Technology readiness level

The approach is grounded in well-established thermodynamics. Future validation will involve controlled laboratory experiments comparing heat transfer rates across different packaging materials and conditions, followed by model development to predict product behavior in real-world distribution. The work is at an early-stage, proof-of-concept phase focused on identifying and characterizing the most promising multilayer packaging solutions before field deployment.