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SEE believes its latest offering for fresh meats and poultry businesses could make a difference.
The company launched the packaging tray at the IPPE event, held in Atlanta, Georgia, last month, and said it marked a major shift in fresh meat packaging as manufacturers look for alternatives to Expanded Polystyrene (EPS) solutions.
The biobased compostable protein tray is made from food-contact grade resin, certified by the United States Department of Agriculture (USDA). Derived from renewable wood cellulose the material breaks down naturally, leaving no chemical residue, the company said.
According to Tiffani Burt, SEE’s executive director for sustainability, digital and smart packaging, the Cryovac Overwrap Tray has been developed in response to a pain point for many of its customers who are under pressure from legislation requiring that are outlawing polystyrene materials.
“What we heard from our customers was that the other sustainable alternatives that they were testing and investigating had some critical failures or flaws, especially moving through processing,” said Burt.
“The wet and harsh nature of processing plants can prove challenging for some rigid packaging materials, like fibre-based moulded pulp solutions. Our tray was designed to withstand that, allowing the product to pass through distribution without impacting the shelf life.”
While ensuring the material had the durability to make it suitable for a range of processing environments, the other top priority was to ensure that it would be fully compostable.
“The trays are derived from a biopolymer that is made from cellulose,” said Burt. “That material is then processed using innovative proprietary extrusion technology to lightweight it, ensuring we use the least amount of material possible to do the job. And because of the material’s natural composition, it can compost in home composting bins as well as industrial composting solutions.”
SEE’s Cryovac Overwrap Tray is the latest solution to help meet the gradual phase out of polystyrene materials worldwide. The race to end the use of the material is seen as particularly urgent because its lack of biodegradability has also led to growing evidence that the material is contributing to the problem of microplastic pollution.
The EU, UK, Canada, Chile, New Zealand, and India are among more than 60 countries to impose legislation to phase out polystyrene. In the US the material has only been outlawed in 11 of the 50 states, while its use still goes largely unregulated in Asia, Africa, and Latin America – but pressure is mounting for a global ban.
Such legislation has prompted a big shift, particularly in the fast-food industry, which has relied heavily on single-use polystyrene-based packaging. Similarly, the legislation has also prompted fresh meat and poultry brands to find more sustainable alternatives for overwrap trays.
To meet this demand, a number of packaging providers have launched protein trays with enhanced recyclability, together with solutions that are based on Post-Consumer Recycled materials.
Compostable packaging is perceived by consumers to be one of the most environmentally-friendly solutions. This was underlined in a 2023 survey conducted by McKinsey, showing that consumers in 10 out of 11 major countries believed that compostable packaging materials are the most eco-friendly.
A 2019 study by the Fraunhofer Institute for Environmental Safety & Technology found that of the nine plastic materials that are used for meat and poultry trays – including PS, PET, PLA, XPS and PP – the XPS trays had the lowest environmental impact due to the use of mono materials, while multi-layered solutions had the highest impact.
The study also showed that none of these materials were proven to be in any way compostable, while only XPS trays were highlighted as having significant potential for recycling.
“There are several initiatives, actions and strategies within the EU and globally that aim to address the plastic waste problem. Nonetheless, it is unclear whether these strategies will contribute to overall sustainability or present an enhanced industrialised vision for recycling,” the study concludes.
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