Size matter! A choice architectural field experiment in reducing food waste

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    Abstract

    Objectives
    We examined how a reduction in plate size would affect the amount of food waste from leftovers in a field experiment at a standing lunch for 220 CEOs.

    Methods
    A standing lunch for 220 CEOs in the Danish Opera House was arranged to feature two identical buffets with plates of two different sizes. One buffet featured standard sized plates that served as control (standard size as provided by the caterer, 27cm). A second buffet featured smaller sized plates (24cm) that served as the intervention. After the lunch concluded (30 minutes), all leftover food was collected in designated trash bags according to size of plates and weighed in bulk.

    Results
    Those eating from smaller plates (n=145) left significantly less food to waste (aver. 14,8g) than participants eating from standard plates (n=75) (aver. 20g) amounting to a reduction of 25,8%.

    Conclusions
    Our field experiment tests the hypothesis that a decrease in the size of food plates may lead to significant reductions in food waste from buffets. It supports and extends the set of circumstances in which a recent experiment found that reduced dinner plates in a hotel chain lead to reduced quantities of leftovers.
    OriginalsprogEngelsk
    TidsskriftMenu: Journal of Food and Hospitality Research
    Vol/bind4
    Sider (fra-til)11-15
    Antal sider4
    ISSN2275-5748
    StatusUdgivet - 2015

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