Food Waste in K-12 Cafeterias
Author Information
Author(s): Adjapong Eunice S., Bender Kathryn E., Schaefer Sophia, Roe Brian E.
Primary Institution: Department of Economics, University of Maryland, College Park, Maryland, United States of America
Hypothesis
What school and meal characteristics are associated with plate waste in K-12 cafeterias in the United States?
Conclusion
Schools that allow students to choose their own amount of milk waste significantly less milk than those that use individual cartons.
Supporting Evidence
- Schools that allow students to choose their own milk waste 76% less milk than those that use cartons.
- Schools with at least one non-curricular intervention report significantly less produce waste.
- More waste is generated by younger students and during shorter lunch periods.
Takeaway
This study shows that schools can waste less food if they let kids pick how much milk they want and if they have longer lunch times.
Methodology
Data were collected from 134 schools across 24 states using standardized audits of plate waste.
Potential Biases
Potential bias due to self-selection of schools that chose to participate in the audit.
Limitations
The study relies on self-reported data from a self-selected group of schools, which may not be representative.
Participant Demographics
The sample includes schools with varying percentages of students receiving free or reduced-price meals, primarily elementary schools.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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