Rethinking ‘Best-Before’ Dates: Using Behavioral Science to Reduce Food Waste and Resulting Carbon Emissions

Investigators

• Deepak Sirwani

Background

Food waste is a major contributor to carbon emissions, with a significant portion stemming from consumer misinterpretation of "best-before" dates. Many consumers discard food prematurely due to confusion between quality-based and safety-based labeling, leading to unnecessary waste. Behavioral science offers insights into how cognitive biases and decision-making patterns influence food disposal habits. By rethinking how expiration labels are designed and communicated, it is possible to encourage more informed consumer behavior and reduce food waste at scale.
 

Research Objectives

This study aims to explore how behavioral science can be leveraged to reduce food waste and its associated carbon emissions by improving the understanding and use of "best-before" dates. It will examine consumer perceptions of date labeling, assess the effectiveness of alternative labeling strategies in reducing unnecessary waste, and evaluate policy and industry interventions that promote sustainable food consumption. The findings will provide insights for policymakers, businesses, and researchers seeking to develop evidence-based solutions for food waste reduction.