Short answer
Prioritize packaging solutions that demonstrably reduce food spoilage and consider the full environmental cost of material sourcing, not just end-of-life disposal.
- Field
- Resource Management
- Source
- Journal of Cleaner Production (2020)
- Method
- Systematic Review and Quantitative Analysis
- Sample
- 19 papers for detailed investigation (from an initial review of 111)
- Evidence
- Moderate effect
While bioplastics offer potential advantages in reducing global warming potential and non-renewable energy use compared to conventional plastics, their overall environmental impact can be negated by the resources required for raw material production and their efficacy in preventing food waste. This resource management research insight is drawn from a 2020 study published in Journal of Cleaner Production. Using Systematic review and quantitative analysis with 19 papers for detailed investigation (from an initial review of 111), researchers explored how this design variable affects real-world outcomes. The key design takeaway: Prioritize packaging solutions that demonstrably reduce food spoilage and consider the full environmental cost of material sourcing, not just end-of-life disposal.
Bioplastic packaging's environmental benefits are often offset by agricultural inputs and food waste.
While bioplastics offer potential advantages in reducing global warming potential and non-renewable energy use compared to conventional plastics, their overall environmental impact can be negated by the resources required for raw material production and their efficacy in preventing food waste.
Journal of Cleaner Production · 2020
Key Findings
- 01Bioplastics show environmental benefits for global warming potential and non-renewable energy use.
- 02These benefits are often negated by the agricultural inputs required for bioplastic raw material production.
- 03Current LCAs do not provide sufficient evidence to determine which polymer is best at reducing food waste.
- 04The environmental footprint of food production and food waste is significant and should be included in food packaging LCAs.
Application
Design takeaway
Prioritize packaging solutions that demonstrably reduce food spoilage and consider the full environmental cost of material sourcing, not just end-of-life disposal.
How to apply
When designing food packaging, conduct a comprehensive life-cycle assessment that includes the environmental costs of raw material production (e.g., agriculture) and rigorously test the packaging's ability to extend the shelf life of the food it contains.
Project actions
- 01When evaluating materials, go beyond simple end-of-life claims and investigate the upstream impacts.
- 02Consider how your design directly contributes to reducing food waste, not just packaging waste.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Systematic approach to literature review.
- +Focus on the often-overlooked link between food packaging and food waste.
Limitations
Conducting a full life-cycle assessment is complex and resource-intensive. It can be challenging to accurately quantify the impact of food waste prevention.
Reliability & validity
The validity of the findings depends on the quality and scope of the LCAs included in the review. The review itself provides a systematic approach to synthesizing existing research, enhancing reliability.
Think critically
If bioplastics' agricultural inputs can negate their end-of-life benefits, what are the most critical factors a designer should prioritize when selecting materials for food packaging to achieve genuine environmental improvement?
Design Principles
"Holistic Life-Cycle Design: Evaluate design choices based on their impact across the entire product lifecycle, from raw material extraction to end-of-life, including the product's primary function (e.g., food preservation)."
Designers must consider the entire life cycle of food packaging, including the environmental footprint of raw material cultivation and the critical role packaging plays in minimizing food spoilage. A narrow focus on end-of-life biodegradability can lead to unintended negative environmental consequences.
What This Means for Your Design
Just because a plastic is 'biodegradable' doesn't mean it's automatically better for the environment. You need to look at how the material is made (like farming the crops for bioplastics) and how well the packaging actually stops food from going bad.
How to use in your project
- 1.Cite this research when discussing the limitations of focusing solely on biodegradability for bioplastics, or when justifying a broader scope for your life-cycle assessment.
Add to My Project
Quick Cite
Paragraph starter
This review underscores the critical need to broaden system boundaries in life-cycle assessments for food packaging. While bioplastics may offer advantages in certain impact categories like global warming potential, their overall environmental benefit can be significantly diminished by the agricultural inputs required for raw material production and their actual effectiveness in minimizing food waste. Therefore, design decisions should not solely rely on end-of-life properties but must holistically consider the packaging's role in food preservation and the full environmental cost from sourcing to disposal.
Source
Journal of Cleaner Production
Don’t scrap the waste: The need for broader system boundaries in bioplastic food packaging life-cycle assessment – A critical review
journal · 2020
View sourceQuestions About This Research
- What does the research say about bioplastic packaging's environmental benefits are often offset by agricultural inputs and food waste?
- Prioritize packaging solutions that demonstrably reduce food spoilage and consider the full environmental cost of material sourcing, not just end-of-life disposal. Evidence: Journal of Cleaner Production (2020).
- Why does "Bioplastic packaging's environmental benefits are often offset by agricultural inputs and food waste." matter for design?
- Designers must consider the entire life cycle of food packaging, including the environmental footprint of raw material cultivation and the critical role packaging plays in minimizing food spoilage. A narrow focus on end-of-life biodegradability can lead to unintended negative environmental consequences.
- How can designers apply this research?
- Prioritize packaging solutions that demonstrably reduce food spoilage and consider the full environmental cost of material sourcing, not just end-of-life disposal.
- What were the main findings?
- Bioplastics show environmental benefits for global warming potential and non-renewable energy use.. These benefits are often negated by the agricultural inputs required for bioplastic raw material production.. Current LCAs do not provide sufficient evidence to determine which polymer is best at reducing food waste.. The environmental footprint of food production and food waste is significant and should be included in food packaging LCAs.
- What research method was used?
- Systematic Review and Quantitative Analysis with 19 papers for detailed investigation (from an initial review of 111).
- How strong is the evidence?
- Evidence strength is rated Moderate effect, based on a 2020 journal from Journal of Cleaner Production.
- What should I do differently in my next project?
- When designing food packaging, conduct a comprehensive life-cycle assessment that includes the environmental costs of raw material production (e.g., agriculture) and rigorously test the packaging's ability to extend the shelf life of the food it contains.
- What are the limitations?
- The reviewed LCAs did not provide enough evidence to definitively rank polymers for food waste reduction. The study focused on specific LCA impact categories.