1 Introduction
2 The direct and indirect environmental impacts of food packaging
2.1 Packaging material (primary, secondary and tertiary)
2.2 Transport
2.3 Food waste
Food waste in transport, distribution and retail | • Food damage by inappropriate packaging (Corrado et al. 2017) |
• Expired food (Corrado et al. 2017) | |
• Unsold food (Corrado et al. 2017) | |
Food waste in households | • Food not eaten due to preparation of excess food (Corrado et al. 2017) |
• Food not eaten due to passed best-before date (Corrado et al. 2017) | |
• Food spilled due to inappropriate opening devices of packaging (Duizer et al. 2009) | |
• Food not eaten due to difficulty of completely emptying packaging (Williams et al. 2012) | |
• Food not eaten due to decrease in quality (insufficient protection) (Verghese et al. 2015) |
2.4 Food transport, storage and preparation by households
2.5 Packaging waste end-of-life
2.6 Food waste end-of-life
3 Methods
3.1 Literature search and selection
Keyword category | Type 1 | Type 2 | Type 3 |
---|---|---|---|
Purpose | To identify research based on LC assessment methodology | To identify LCAs on food products | To limit the search to food LCAs that include packaging |
List of keywords | Life cycle assessment, life cycle analysis, LCA, carbon footprint | Food, meal, dish, beverage, meat, fish, poultry, seafood, dairy, cereal, fruit, vegetable, pork, beef, lamb, chicken, egg, cheese, milk, yoghurt, salmon, cod, sardine, tuna, bread, pasta, rice, sugar, flour, beer, wine, “soft drink”, juice, nectar, “still drink”, coffee, tea, “mineral water”, spirits, apple, orange, banana, pear, melon, berries, berry, cherry, pineapple, citrus, plum, apricot, grapes, peach, nuts, tomato, cucumber, lettuce, pepper, potato, carrot, maize, cabbage, root, peas, spinach, onion, garlic, leek, butter, fat, pulses, cocoa | Packaging, package, container |
Reference | Analysed food product | Analysed primary packaging type(s) |
---|---|---|
1. Amienyo et al. (2013) | Carbonated soft drinks | Glass bottles, aluminium cans and PET bottles |
2. Amienyo et al. (2014) | Red wine | Glass bottles |
3. Amienyo and Azapagic (2016) | Beer | Glass bottles, steel cans and aluminium cans |
4. Bonamente et al. (2016) | Red wine | Glass bottles |
5. Bevilacqua et al. (2007) | Pasta | Cardboard and plastic |
6. Calderón et al. (2010) | Ready meal | Steel cans, glass jars and plastic pouches |
7. Cellura et al. (2012) | Vegetables | Cardboard boxes, wooden and plastic crates |
8. Cordella et al. (2008) | Beer | Glass bottles and steel kegs |
9. Davis and Sonesson (2008) | Complete dinner meal | Cardboard, laminated cardboard and plastics |
10. Dalla Riva et al. (2017) | Mozzarella cheese | Plastic bags |
11. Espinoza-Orias et al. (2011) | Bread | Paper and plastic bags |
12. Flysjö (2011) | Butter and margarine | Flexible polymer packaging |
13. Fusi et al. (2014) | White wine | Glass bottles |
14. Garofalo et al. (2017) | Whole peeled tomato | Steel cans |
15. Gazulla et al. (2010) | Wine | Glass bottles |
16. Girgenti et al. (2013) | Blueberry and raspberry | Plastic trays with wrapping |
17. Girgenti et al. (2014) | Strawberry | Plastic trays with wrapping |
18. Hassard et al. (2014) | Coffee products | Steel can, plastic bag, glass bottle |
19. Hanssen et al. (2017) | Complete dinner meal | Paper and plastics |
20. Humbert et al. (2009) | Coffee | Glass jars |
21. Iribarren et al. (2010) | Mussels | Steel cans with carton wrap |
22. Jeswani et al. (2015) | Breakfast cereals | Folding carton boxes |
23. Laso et al. (2017) | Anchovy | Aluminium and tinplate cans, glass and plastic jars |
24. Manfredi and Vignali (2014) | Tomato purée | Glass jars |
25. McCarty et al. (2014) | Peanut butter | PET jars |
26. Point et al. (2012) | Wine | Glass bottles |
27. Rinaldi et al. (2014) | Olive oil | Glass bottles |
28. Schmidt Rivera et al. (2014) | Ready meal | Plastics and cardboard |
29. Tasca et al. (2017) | Endive salad | Plastic bags |
30. Teixeira et al. (2013) | Breton pâté | Steel cans, aluminium cans and glass jars |
31. Thoma et al. (2013) | Milk | Plastic containers and beverage cartons |
32. Zufia and Arana (2008) | Tuna dish with tomato sauce | Plastic trays |
3.2 Analytical framework
Scope | Sensitivity and scenario analyses | Conclusions and recommendations | |
---|---|---|---|
Primary packaging material (direct) | Included in all selected studies | Yes/no | Yes, including discussion of limitations |
Yes, not discussing limitations | |||
No | |||
Secondary and tertiary packaging material (direct) | Included | Yes/no | Yes, including discussion of limitations |
Yes, not discussing limitations | |||
Not included | No | ||
Transport from producer to retail (indirect) | Included | Yes/no | Yes, including discussion of limitations |
Not included | Yes, not discussing limitations | ||
No | |||
Food waste in transport, distribution and retail (indirect) | Included | Yes/no | Yes, including discussion of limitations |
Not included | Yes, not discussing limitations | ||
No | |||
Food transport, storage and preparation by households (indirect) | Included | Yes/no | Yes, including discussion of limitations |
Not included | Yes, not discussing limitations | ||
No | |||
Food waste in households (indirect) | Included | Yes/no | Yes, including discussion of limitations |
Not included | Yes, not discussing limitations | ||
No | |||
Packaging end-of-life (direct) | Included in all selected studies | Yes/no | Yes, including discussion of limitations |
Yes, not discussing limitations | |||
No | |||
Food waste end-of-life (indirect) | Included | Yes/no | Yes, including discussion of limitations |
Not included | Yes, not discussing limitations | ||
No |
3.2.1 Review of the food LCAs’ scope
3.2.2 Review of sensitivity and scenario analyses
3.2.3 Review of conclusions and recommendations
4 Results
Scope | Part of sensitivity/scenario analyses | Conclusions and recommendations | |
---|---|---|---|
Primary packaging material (direct) | Included in all analysed food LCAs | Yes: 20 | All studies (including a discussion of limitations: 11) |
No: 12 | |||
Secondary and tertiary packaging material (direct) | Secondary and tertiary included: 14 | Yes: 1 | Yes: 2 (not discussing limitations) |
Secondary included: 11 | No: 31 | No: 30 | |
Not included/not mentioned: 7 | |||
Transport from producer to retail (indirect) | Included in all analysed food | Yes: 12 | Yes: 21 (including a discussion of limitations: 5) |
LCAs | No: 20 | No: 11 | |
Food waste transport, distribution and retail (indirect) | Explicitly included: 7 | Yes: 1 | Yes: 4 (including a discussion of limitations: 1) |
Not included/ not mentioned: 26 | No: 31 | No: 28 | |
Food transport, storage and preparation by households (indirect) | Explicitly included: 19 | Yes: 2 | Yes: 12 (including a discussion of limitations: 2) |
Not included/not mentioned: 13 | No: 30 | No: 20 | |
Food waste in households (indirect) | Explicitly included: 12 | Yes: 5 | Yes: 9 (including a discussion of limitations: 1) |
Not included/not mentioned: 21 | No: 21 | No: 23 | |
Packaging end-of-life (direct) | Included in all analysed food LCAs | Yes: 4 | Yes: 7 (not discussing limitations) |
No: 27 | No: 25 | ||
Food waste end-of-life (indirect) | Explicitly included: 9 | Yes: 1 | Yes: 2 (not discussing limitations) |
Not included/ not mentioned: 23 | No: 31 | No: 30 |
4.1 Primary packaging material (direct)
Recommendations for packaging a | Limitations discussed in relation to provided recommendations | |
---|---|---|
Primary packaging material (direct) | - Change packaging material [1,3, 5, 6 7, 10, 11, 13, 14, 20, 22, 23, 26, 32] | - Changing packaging material might negatively influence product quality [2,3, 13, 17] |
- Reduce amount of packaging material [2, 3, 4, 10, 13, 19, 20, 22, 24, 26, 27, 28, 31, 32] | ||
- Changing packaging material type can affect production, marketing and logistics [17] | ||
- Increase recycled content in primary packaging material [2, 3] | ||
- Switch to more energy-efficient processes to form packaging [31] | ||
- Carefully select packaging material suppliers [8] | - Consumer acceptance of plastics as packaging material for certain food products is questioned [23] | |
- Sell products without packaging [29] | ||
- Selling products without packaging might lead to increased food waste [29] | ||
Secondary and tertiary packaging material (direct) | - Use reusable secondary packaging [29] | No limitations discussed |
Transport from producer to retail (indirect) | - Reduce weight of packaging [13, 18, 20, 24] | - Risk of contamination in containers that are reused several times for bulk shipping and negative consumer perception of bulk shipping [2] |
- Develop more transport-efficient packaging [19, 32] | ||
- Bulk shipping [2] | ||
- Recommendation for lighter packaging is more important for long transport distances than for short [13] | ||
Food waste transport, distribution and retail (indirect) | - Both packaging and food waste in the supply chain should be reduced [28] | No limitations discussed |
Food transport, storage and preparation by households (indirect) | - No packaging-related recommendations provided | No limitations discussed |
Food waste in households (indirect) | - Develop packaging that prolongs product shelf life [9, 12, 17] | No limitations discussed |
- Develop packaging of right size for consumer needs [9, 11, 12] | ||
- Develop packaging that is easy to empty and convenient to use [12] | ||
Packaging end-of-life (direct) | - Increase packaging recycling [1, 2, 3, 14, 23] | No limitations discussed |
- Use reusable/returnable packaging [1, 8, 26] | ||
- Use biodegradable/compostable packaging [6, 16, 17] | ||
Food waste end-of-life (indirect) | - Use biodegradable/compostable packaging to reduce the amount of food waste going to landfill (since packaging and food waste are often discarded together) [6] | No limitations discussed |