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Open AccessArticle

New Zealand’s Food Waste: Estimating the Tonnes, Value, Calories and Resources Wasted

1
The Barbara Hardy Institute, University of South Australia, Mawson Lakes Boulevard, Mawson Lakes, SA 5095, Australia
2
Consumer Food Science, Department of Food Science, University of Otago, Dunedin 9054, New Zealand
3
Plant & Food Research, Food Industry Science Centre, Palmerston North 4442, New Zealand
*
Author to whom correspondence should be addressed.
Academic Editor: Michael Blanke
Agriculture 2016, 6(1), 9; https://doi.org/10.3390/agriculture6010009
Received: 29 September 2015 / Revised: 20 January 2016 / Accepted: 13 February 2016 / Published: 23 February 2016
(This article belongs to the Special Issue Fresh Produce Wastage)
We used macro-economic data and aggregated waste data to estimate that, in 2011, New Zealand households generated over 224,000 tonnes of food waste, and New Zealand industry generated over 103,000 tonnes of food waste. We split New Zealand’s food waste into 14 food-waste categories and found that 7% is related to “fresh” produce, and 93% “processed” food waste. The value of New Zealand’s food waste in 2011 is estimated to be NZ $568 million, or $131 per person. Furthermore, New Zealand’s food waste represents 163 × 109 calories in total, and avoidable food waste would be able to feed between 50,000 and 80,000 people a year. New Zealand food waste embodies 4.2 × 106 tonnes of CO2-e, 4.7 × 109 m3 of water, and 29 × 103 TJ of energy. Nonetheless, we find that, compared to other nations, New Zealanders waste less food per capita by weight, value and calorie. View Full-Text
Keywords: food waste; input-output; life cycle analysis; food security; New Zealand; food losses; wastage; footprint; SEEA; LCA; Life Cycle Analysis food waste; input-output; life cycle analysis; food security; New Zealand; food losses; wastage; footprint; SEEA; LCA; Life Cycle Analysis
MDPI and ACS Style

Reynolds, C.J.; Mirosa, M.; Clothier, B. New Zealand’s Food Waste: Estimating the Tonnes, Value, Calories and Resources Wasted. Agriculture 2016, 6, 9.

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