Cited by 107Food Waste Reduction and SustainabilityAgriculture Sustainability and Environmental ImpactFood Supply Chain Traceability

Quantity and quality of food losses along the Swiss potato supply chain: Stepwise investigation and the influence of quality standards on losses

Open access
Willersinn, Christian, Mack, Gabriele, Mouron, Patrik, Keiser, Andreas, Siegrist, Michael·2015·Waste Management

Abstract

This paper presents the results of a stepwise investigation of the quantity and quality of food losses along the Swiss potato supply chain. Quantitative data were collected from field trials, from structured interviews with wholesalers, processors and retailers, and from consumer surveys in combination with a 30-day diary study. The "Swiss trade customs for potatoes" pose the basis for the qualitative evaluation of losses. The influences of technological, institutional (business and economy; legislation and policy), and social drivers on the generation of fresh potato and processed potato products losses were assessed. Losses due to quality standards driven by food safety and consumer preferences for certain aesthetic standards have been evaluated too. Across the entire potato value chain, approximately 53-55% of the initial fresh potato production and 41-46% of the initial processing potato production are finally lost. Losses between organic and non-organic supply chains differ from 2% to 5%. From the total initial fresh potato production, 15-24% gets lost during agricultural production, a further 12-24% at wholesalers, 1-3% at retailers, and 15% at private households. In comparison, 5-11% of the initial production gets lost at wholesalers, a further 14-15% during processing, 0% at retailers, and 2% at private households. Losses during agricultural production do not vary much (13-25%) between fresh and processing potatoes. Approximately half of total potato losses occur because potatoes do not meet quality standards. 25-34% of these quality-driven losses are caused by food safety reasons, and the remainder are caused by consumer preferences or suitability for storage. In total, social drivers (e.g., consumer preferences, behavior, or socio-demographical factors) are responsible for two-thirds to three-fourths of all fresh potato losses and 40-45% of all processing potato losses. Technological drivers cause circa one-third of the total processing potato losses. The majority of the rejected potatoes are used as animal feed (67-90%) in Switzerland. Approximately 30% of all fresh potato losses are disposed while just 4-5% of all processing potato losses are thrown away. The interviewed experts stated that lower quality specifications might cause lower loss rates at the first stages of the supply chain but higher ones at the later stages due to worse storage or processing abilities of potatoes with defects, which also might affect proper tubers.

Integrity signals

Registry

Crossref · 10.1016/j.wasman.2015.08.033

Cites

24 of 24 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Proper process management to guarantee food quality and safety based on published standards can be a key factor in reducing food loss.

    “Proper process management to guarantee food quality and safety based on published standards can be a key factor in reducing FL [77].”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Willersinn, C., Mack, G., Mouron, P., Keiser, A., & Siegrist, M.
Affiliations
  • Agroscope (CH)
  • ETH Zurich (CH)
Corresponding author
Willersinn, Christian
Venue
Waste Management
Publisher
Elsevier BV
Published
2015-12
Volume
46
Pages
120-132
ISSN
0956-053X (ISSN-L)
OpenAlex
W1268309582
Cited by
107
References
24
Citations by year
2026: 3 · 2025: 13 · 2024: 12 · 2023: 8 · 2022: 15 · 2021: 13 · 2020: 11 · 2019: 14 · 2018: 4 · 2017: 5 · 2016: 9
FWCI
7.43
Type
journal article
Language
en
Open access
Locations
  • Waste Management (publishedVersion)
  • PubMed (publishedVersion)
  • ARBOR - Bern University of Applied Sciences Repository (submittedVersion)
  • BFH: ARBOR
Funders
Swiss National Science Foundation
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Food Waste Reduction and Sustainability
  • Physical Sciences › Environmental Science › Ecology › Agriculture Sustainability and Environmental Impact
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Food Supply Chain Traceability
Keywords
potato supply chain, food loss, food waste, quality standards, fresh potatoes, processed potatoes, food safety, consumer preferences, organic supply chain, animal feed
MeSH terms
Food Handling, Food Supply, Solanum tuberosum, Switzerland, Databases, Factual, Food Quality

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review