UQ Research Targets Significant Food Waste in Hospitals and Aged Care

A new study led by Dr. Nathan Cook, a researcher from the University of Queensland (UQ), in collaboration with colleagues from UQ, Adelaide, and Monash universities, has investigated effective strategies to diminish food waste in Australian hospitals and residential aged care facilities. The research addresses the substantial food waste attributed to various factors, including patient needs, staff behavior, foodservice operations, stringent food safety regulations, and nutrition policies.

Dr. Cook's personal motivation for undertaking this research originated from observing considerable food waste during his previous work in hospitals. He highlights that reducing food waste offers multiple benefits: it can lead to significant cost savings, a decrease in greenhouse gas emissions, lower disposal costs, and foster a more sustainable healthcare system that better caters to patients by providing their preferred food options.

The scale of the problem is stark: Up to 50% of hospital waste can be food, and 23–50% of food prepared in residential aged care homes is discarded.

Auditing and Technology Solutions

The research identifies auditing as a crucial initial step for pinpointing effective solutions to food waste. Traditionally, food waste audits in hospitals are often manual and infrequent, typically occurring about twice a year, and are even rarer in aged care homes.

Measuring food waste allows for the identification of uneaten food and reasons for patient rejection, which in turn can inform simple yet impactful changes such as offering flexible portion sizes, expanding meal choices, or adjusting meal schedules.

In a significant advancement, technology, particularly AI-based solutions, offers a promising approach for fast and accurate food waste measurement without disrupting operations. These innovative tools can photograph and analyze plates both before and after meals, providing precise data on consumption patterns without imposing additional tasks on kitchen staff.

Pathway to Significant Savings and Sustainability

International case studies underscore the powerful impact of implementing changes based on audit findings. One hospital, for instance, achieved approximately $200,000 annually in food purchasing alone, alongside additional savings from reduced preparation and disposal costs.

Dr. Cook strongly advocates for the adoption of these auditing innovations across Australia to establish a continuous cycle of measurement and improvement.

This approach aims to identify actionable steps toward achieving Australia’s national target of halving food waste by 2030.