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Article

Sorting Analysis of Household Food Waste—Development of a Methodology Compatible with the Aims of SDG12.3

1
Faculty of Regional Development, Taisho University, Tokyo 170-8470, Japan
2
Department of Sociology, Faculty of Liberal Arts, Teikyo University, Tokyo 192-0395, Japan
3
Faculty of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto 606-8522, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Ada Margarida Correia Nunes Da Rocha
Sustainability 2021, 13(15), 8576; https://doi.org/10.3390/su13158576
Received: 12 June 2021 / Revised: 15 July 2021 / Accepted: 24 July 2021 / Published: 31 July 2021
Target 12.3 of the United Nations Sustainable Development Goals (SDGs) calls for halving per capita global food waste at the retail and consumer levels, by 2030. The Food Waste Index is suggested as a methodology for grasping the situation. This paper focuses on the consumer level (household food waste). We argue that in order for generating useful information for devising and implementing effective measures for reducing food waste, it should be measured at Level 3 of the Food Waste Index, based on sorting analysis of generated waste, and making a distinction between avoidable and non-avoidable food waste. Furthermore, a breakdown by subcategories that reflect the flow of food in the household could help identify target behaviours. We have developed a categorisation scheme that is internationally agreeable and adoptable, and (1) generates useful information for policy-making and for tackling with reduction of food waste, (2) makes clear the concept of avoidable food waste, and (3) is practical and does not overcomplicate the work of grasping the situation of food wastage. Results of workshops regarding this scheme suggest that the scheme satisfies the criteria. This scheme has been applied to a few sorting analyses of household food waste in Japan, and their results are compared. View Full-Text
Keywords: food waste index; household food waste; waste characterisation; waste sorting analysis; avoidable food waste; preparation residues; SDG target 12.3; methodology development; assessment of current situation food waste index; household food waste; waste characterisation; waste sorting analysis; avoidable food waste; preparation residues; SDG target 12.3; methodology development; assessment of current situation
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MDPI and ACS Style

Okayama, T.; Watanabe, K.; Yamakawa, H. Sorting Analysis of Household Food Waste—Development of a Methodology Compatible with the Aims of SDG12.3. Sustainability 2021, 13, 8576. https://doi.org/10.3390/su13158576

AMA Style

Okayama T, Watanabe K, Yamakawa H. Sorting Analysis of Household Food Waste—Development of a Methodology Compatible with the Aims of SDG12.3. Sustainability. 2021; 13(15):8576. https://doi.org/10.3390/su13158576

Chicago/Turabian Style

Okayama, Tomoko, Kohei Watanabe, and Hajime Yamakawa. 2021. "Sorting Analysis of Household Food Waste—Development of a Methodology Compatible with the Aims of SDG12.3" Sustainability 13, no. 15: 8576. https://doi.org/10.3390/su13158576

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