Packaging is the bad guy: myth or not?
As a science-based method, LCA is an excellent tool to bust the myths that surround sustainability. In this monthly series, we look at some common sustainability ideas to see if they are myth or true. In today’s episode: the impact of packaging.
The most important goal of packaging is to protect and preserve products. Regularly, however, packaging is also used for labeling and transport purposes. For consumers, packaging material is one of the most eye-catching aspects of a product. In terms of environmental impact, packaging is often perceived as being one of the bad guys. For some products, therefore, the focus on packaging is so strong that many studies have been done on the environmental impact of just the packaging.
Packaging designs are constantly changing
Since the early days of life cycle assessment, numerous studies have been done to assess the impact of different types of packaging materials and designs. The packaging industry is continuously reinventing itself with insights from those studies. An example can be found in the movement towards more lightweight packaging. This can either mean the material is replaced by a lighter alternative (think of wine in pouches rather than glass bottles), or that the amount of material is reduced (for instance in the case of plastic water bottles). The advantage of lightweight packaging is the reduction in emissions from transport.
…and so are products
Other trends in packaging include the use of recycled material, which my colleague Marisa will tell you about next month, or the manufacture of concentrates (such as liquid detergents and other care products). Concentrated products contain less water, which does not only lead to a significant reduction in packaging material and accompanying waste, but also reduces transport impacts.
The UNEP SETAC Life Cycle Initiative concluded that there are few, if any, generalities about what makes a package environmentally preferable in terms of materials or design attributes. Therefore, it is recommended to use an objective life cycle assessment to compare different packaging styles. The optimal choice will depend on characteristics such as the raw materials chosen, the product being packed, and the accompanying supply chain.
Packaging is the bad guy: myth or not?
Different packaging styles can all have their own benefits and downsides, which makes it important to watch out for burden-shifting. The packaging industry is very responsive to new insights and developments.
In any case, the main goal of packaging should still be protection and preservation. The choice for a different material or design should not have a negative influence on that. If a product’s shelf life is reduced because the packaging is easily damaged, the environmental impact of producing a new product may ultimately be higher than if you just provide sturdy packaging. Of course, you can also consider making packaging from recycled materials. Is recycling always a good option, though? Marisa will help clear the issue in the next Mythbuster item.
Sustainability Mythbusters series
This is the first part of our ‘Sustainability Mythbusters’ series. Read other chapters:
- Sustainability Mythbusters I: Packaging
- Sustainability Mythbusters II: Recycling
- Sustainability Mythbusters III: Bio-based vs. fuel-based
- Sustainability Mythbusters IV: Transportation
- Sustainability Mythbusters V: Product energy use reduction
- Sustainability Mythbusters VI: Manufacturing products with zero emissions
- Sustainability Mythbusters VII: Local sourcing vs global sourcing
- Sustainability Mythbusters VIII: Zero waste
- Sustainability Mythbusters IX: Organic food vs Conventional food
- Sustainability Mythbusters X: Plant-based diet
- Sustainability Mythbusters XI: Biofuels and food shortages
- Sustainability Mythbusters XII: Electric cars and green mobility
- Sustainability Mythbusters XIII: 3D printing
It’s easy to use ‘common sense’ and make assumptions in sustainability, but is that always worth your efforts? If you want to learn how you can use sustainability metrics to uncover more myths for your company, contact us.
I am eager to increase the environmental awareness of our society, and I believe that everyone can contribute to a more sustainable world, every day. At PRé we provide companies with both the knowledge and the tools to improve their products and services. I am excited to work for an organisation that is involved in developing sustainable initiatives.