Chalmers Conferences, LCM 2013

Karin Flury, Niels Jungbluth, Graham Houlder

Last modified: 2014-09-11


A considerable amount of food waste is caused in households due to bad storage, poor planning and consumer’s preference for fresh food. Food waste due to bad handling in industrial processes on the other hand is minimal. This leads to the question whether overall food losses of a ready-made meal are lower than for a meal freshly prepared at home. This question was investigated in an LCA study comparing ready-made and home-made lasagne Bolognese. The aim of the study was to examine what possible differences in the food losses imply for the environmental impacts of equivalent lasagnes. The data needed were derived from literature, own measurements and supplemented by data from the food industry. Contrary to the expectations, the amount of total food waste was estimated to be about the same for both products. The losses occurring in the production chain of the ready-made lasagne are driven by losses in the food industry and returned products reaching the expiry at the point of sale. In case of the home-made lasagne, the major losses are caused at the household. The environmental impacts of the two types of lasagne are comparable. In both cases, the major contribution to the impacts derives from the food ingredients.


food waste; LCA; Lasagne Bolognese; ready-made; home-made


Büsser S., Jungbluth N. (2009). LCA of Ready-to-Serve Bolognese Lasagne Packed in Aluminium Containers. ESU-services Ltd. commissioned by European Aluminium Foil Association e.V. (EAFA), Düsseldorf. Uster, CH.

ecoinvent Centre. (2010). ecoinvent data v2.2, ecoinvent reports No. 1-25. Swiss Centre for Life Cycle Inventories. Dübendorf, CH.

Flury K., Büsser S., Jungbluth N. (2013). Ready-to-serve vs. home-made lasagne: An LCA with a focus on food waste in different production chains. ESU-services Ltd. commissioned by European Aluminium Foil Association e.V. (EAFA). Düsseldorf. Zürich, CH.

Gustavsson J., Cederberg C., Sonesson U., van Otterdijk R., Meybeck A. (2011). Global food losses and food waste: Extent, causes and prevention. Swedish Institute for Food and Biotechnology (SIK) commissioned by Food and Agriculture Organization Of The United Nations. Gothenburg, SE.

Jungbluth N., Flury K., Doublet G., Leuenberger M., Steiner R., Büsser S., Stucki M., Schori S., Itten R. (2013). Life cycle inventory database on demand: EcoSpold LCI database of ESU-services. ESU-services Ltd.

Kranert M., Hafner G., Barabosz J., Scheider F., Lebersorger S., Scherhaufer S., Schuller H., Leverenz D. (2012). Emittlung der weggeworfenen Lebensmittelmengen und Vorschläge zur Verminderung der Wegwerfrate bei Lebensmitteln in Deutschland. Universität für Bodenkultur Wien, Institut für Abfallwirtschaft. Wien, AT.

LC inventories. (2013). Corrections, updates and extensions of ecoinvent data v2.2. ESU-services Ltd.

Lorrayne V. (2008). The food we waste. ISBN:1-84405-383-0. Waste and Resource Action Programme (WRAP), Oxon,

PRé Consultants. (2012). SimaPro 7.3.3. Amersfoort, NL.

Solomon S., Solomon S., Qin D., Manning M., Alley R. B., Berntsen T., Bindoff N. L., Chen Z., Chidthaisong A., Gregory J. M., Hegerl G. C., Heimann M., Hewitson B., Hoskins B. J., Joos F., Jouzel J., Kattsov V., Lohmann U., Matsuno T., Molina M., Nicholls N., Overpeck J., Raga G., Ramaswamy V., Ren J., Rusticucci M., Somerville R., Stocker T. F., Whetton P., Wood R. A. and Wratt D. (2007). Technical Summary. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC), Cambridge University Press, Cambridge, United Kingdom and New York, USA.

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