Life cycle assessment of bread produced on different scales

LCA Case studies


A case study of white bread has been carried out with the purpose of comparing different scales of production and their potential environmental effects. The scales compared are: home baking, a local bakery and two industrial bakeries with distribution areas of different sizes. Data from the three bakeries and their suppliers have been collected. The systems investigated include agricultural production, milling, baking, packaging, transportation, consumption and waste management. Energy use and emissions have been quantified and the potential contributions to global warming, acidification, eutrophication and photo-oxidant formation have been assessed.

The large industrial bakery uses more primary energy and contributes more to global warming, acidification and eutrophication than the other three systems. The home baking system shows a relatively high energy requirement; otherwise, the differences between home baking, the local bakery and the small industrial bakery are too small to be significant.


Bread production scales LCA LCA case study bread production scales production scales bread LCA 


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  1. Andersson K.,Ohlsson, T. andOlsson, P. (1998): Screening Life Cycle Assessment (LCA) of tomato ketchup: A case study. Accepted for publication in J. Cleaner Prod.Google Scholar
  2. Andersson-SkOld, Y., Grennfelt, P. andPleijel, K. (1992): Photochemical Ozone Creation Potentials: A study of Different Concepts. J. Air Waste Manage. Assoc. 9, 1152–1158Google Scholar
  3. Arnkvist, J. (1997): LCA of Bread — Comparison of the Packaging Systems in Different Production Scales. Master of Science Thesis, Department of Food Science, Chalmers University of Technology, Göteborg, Sweden, p. 118Google Scholar
  4. Audsley, E., Alber, S., Cuft, R., Cowell, S., Crettaz, P., Gaillard, G., Hausheer, J., Jolliet, O., Kleijn, R., Mortensen, B., Pearce, D., Roger, E., Teulon, H., Weidema, B. andVan Zeijts, H. ( 1997): Harmonisation of Environmental Life Cycle Assessment for Agriculture, Final report of Concerted Action AIR3-CT94-2028. Silsoe Research Institute, Bedford, EnglandGoogle Scholar
  5. Avlani, P.K. andChancellor, W.J. (1977): Energy requirements for Wheat Production and Use in California. Trans. ASAE 20, 429–437Google Scholar
  6. Beech, G.A. (1980): Energy Use in Bread Baking. J. Sci. Food Agric. 31, 289–298CrossRefGoogle Scholar
  7. Büchel, K. (1993): Okobilanz Landwirtschaftlicher Produktion. Beurteilung der Umweltbelastung verschiedener Anbaumethoden des Weizenanbaus und Diskussion der agrarpolitischen Lenkungsmassnahmen. Nachdiplomstudium Umwelttechnik-Landespflege, Liechtensteinische Ingenieurschule Fachhochschule, Vaduz und Ingenieurschule HTL, Chur, Liechtenstein, p. 132Google Scholar
  8. Christensen, A. andSingh, R.P. (1984): Energy Consumption in the baking industry. In:McKenna, B.M. (Ed.): Engineering and Food, Volume 2, Processing Applications, Elsevier Applied Science Publishers Ltd., Barking, Essex, England, p. 965–973Google Scholar
  9. Cowell, S. andClift, R. (1995): Life Cycle Assessment for Food Production Systems. Proceedings No. 375., The Fertiliser Society, Peterborough, England, p. 36Google Scholar
  10. Eriksson, E., Svensson, G., Lövgren, G., Blinge, M., Svingby, M. andÖlund, G. (1995): Transporters miljöpåverkan i ett livscykel-perspektiv. REFORSK Report FoU 126, Chalmers Industri-teknik, Göteborg, Sweden, p. 129Google Scholar
  11. Finnveden, G., Andersson-Sköld, Y., Samuelsson, M.-O., Zetterberg, L. andLindfors, L.-G. (1992): Classification (Impact Analysis) in Connection with Life Cycle Assessments — A Preliminary Study. In:Lindfors, L.-G. (Ed.): Product Life Cycle Assessment — Principles and Methodology. The Nordic Council of Ministers, Copenhagen, p. 172–231Google Scholar
  12. Hfijungs, R., Guinée, J. B., Huppes, G., Lankreijer, R.M., Udo de Haes, H.A., Wegener Sleeswijk, A., Ansems, A.M.M., Eggels, P.G., Van Duin, R. andDe Goede, H.P. (1992): Environmental Life Cycle Assessment of Products. Guide (p. 96) and Backgrounds (p. 130), CML, Leiden University, Leiden, The NetherlandsGoogle Scholar
  13. Houghton, J.T., Jenkins, G.J. andEphraums, J.J. (Eds.) (1990): Climate Change — The IPCC scientific assessment. Cambridge University Press, Cambridge, EnglandGoogle Scholar
  14. IPCC,Intergovernmental Panel on Climatic Change (1994): Radiative Forcing of Climate Change — The 1994 Report of the Scientific Assessment Group of IPCC. John Houghton Meteorological Office, Bracknell, UKGoogle Scholar
  15. Johnsson, H. andHoffmann, M. (1996): Normalutlakning av kväve från svensk åkermark 1985 och 1994. Report Ekohydrologi 39, Division of Water Quality Management, Swedish University of Agricultural Sciences, Uppsala, Sweden, p. 53Google Scholar
  16. Konsumentverket (1996): Spisar, Marknadsöversikt. Konsument-verket, Stockholm, p. 11Google Scholar
  17. Laukkanen, M. (1984): Improving energy use in Finnish bakeries. In:McKenna, B.M. (Ed.): Engineering and Food, Volume 2, Processing Applications. Elsevier Applied Science Publishers Ltd., Barking, Essex, England, p. 917–926Google Scholar
  18. Leach, G. (1976): Energy and food production. IPC Science and Technology Press, Guildford, Surrey, UK, p. 137Google Scholar
  19. Lindfors, L.-G., Christiansen, K., Hoffman, L., Virtanen, Y., Juntilla, V., Hanssen, O.-J., RøNNING, A., Ekvall, T. andFinnveden, G. (1995): Nordic Guidelines on Life-Cycle Assessment. Nordic Council of Ministers, Copenhagen, p. 222Google Scholar
  20. Lindfors, L.-G., Almemark, M., Oscarsson, C. andSpännar, C. (1998): A Manual for the Calculation of Ecoprofiles Intended for Third Party Certified Environmental Product Performance Declarations. IVL, StockholmGoogle Scholar
  21. Lörcher, M., Adler-Köhler, R. andSalzgeber C. (1994): Produkt-Ökobilanz des Pfister-Öko-Brotes für die Ludwig Stocker Hofpfisterei GmbH. Akku Umweltberatungs GmbH, Munich, p. 115Google Scholar
  22. Mattsson, B. (1996): Life Cycle Assessment (LCA) of Agricultural and Industrial Food Production. In:Kristensen, N. H. And Høgh-Jensen, H. (Eds.): New Research in Organic Agriculture, Down to Earth — and Further Afield. Proceedings Vol. 2, 11th International Scientific IFOAM Conference, Copenhagen, pp. 180–184Google Scholar
  23. Mattsson, B., Cederberg, C. andLjung, M. (1998): Principles for Environmental Assessment of Land Use in Agriculture, SIK-report No. 642, SIK, Göteborg, SwedenGoogle Scholar
  24. Müller-Reissmann, K.F. (1990): Ökologische Ernährungssysteme. C.F. Müller, Karlsruhe. In:Lörcher, M., Adler-Köhler, R. andSalzgeber C. (1994): Produkt-Ökobilanz des Pfister-Öko-Brotes für die Ludwig Stocker Hofpfisterei GmbH. Akku Umweltberatungs GmbH, Munich, p. 57Google Scholar
  25. Person, L. andZackrisson, M. (1995): Life cycle assessments including the working environment — A case study of fridge/freezers from Electrolux, Part II: DATA, 95833. IVF, Göteborg, SwedenGoogle Scholar
  26. Pyler, E.J. (Ed.) (1988): Baking Science and Technology, Vol II. Sosland Publishing Company, Merriam, Kansas, USA, p. 754Google Scholar
  27. SLU (1996): Databok för driftsplanering. Swedish University of Agricultural Sciences, Speciella skrifter 62, Uppsala, Sweden, p. 448Google Scholar
  28. SNV (1992): Växthusgaserna — utsläpp och åtgärder i internationellt perspektiv. Report 4011, Naturvårdsverket, StockholmGoogle Scholar
  29. Sonesson, U. (1993): Energy Analysis of Biofuels from Winter Wheat, Rape Seed and Salix. Report 174, Swedish University of Agricultural Sciences, Uppsala, Sweden, p. 54Google Scholar
  30. Taylor, A.E.B., O’Callaghan P.W. andProbert S.D. (1993): Energy Audit of an English Farm. Appl. Energy 44, 315–335CrossRefGoogle Scholar
  31. Tillman, A.-M. (1994): Godstransporter i livscykelanalys, Schablonvärden for energianvändning och emissioner. Report 1994:1, Technical Environmental Planning, Chalmers University of Technology, Göteborg, Sweden, p. 5.Google Scholar
  32. Van Zeijts, H., Leneman, H. andWegener Sleeswijk, A. (1996): Fitting Fertilization in LCA — Allocation to Crops in a Cropping Plan. In:Ceuterick, D. (Ed.): Pre-prints from International Conference on Application of Life Cycle Assessment in Agriculture, Food and Non-Food Agro-Industry and Forestry: Achievements and Prospects. VITO, Mol, Belgium, pp. 69–76Google Scholar
  33. Wegener Sleeswijk, A., Lankreijer, R.M. andVan der Voet, E. (1992): Tarwe en Milieu: Hoe boert de Zeeuwse Vlegel? Een levenscyclusanalyse van de milieueffecten van tarweteelt bij verschillende wijzen van bemesting en gewasbescherming. Wetenschapswinkel, Leiden, The Netherlands. In:Weidema, B.P. (1993): Life Cycle Assessments of Food Products. Proceedings of the 1st European Invitational Expert Seminar on Life Cycle Assessments of Food Products, Lyngby, Denmark, pp. 43–56Google Scholar
  34. Weidema, B. P., Pedersen, R. andDrivsholm, T.S. (1995): Life Cycle Screening of Food Products — Two Examples and some Methodological Proposals. Danish Academy of Technical Sciences, Lyngby, Denmark, p. 193Google Scholar

Copyright information

© Ecomed Publishers 1999

Authors and Affiliations

  1. 1.CIT EkologikChalmers TeknikparkGöteborgSweden
  2. 2.SIKThe Swedish Institute for Food and BiotechnologyGöteborgSweden

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