Waitrose to develop langoustine shell “plastic” for Duchy smoked salmon products

editorial staff

Alternative to conventional plastic film made from waste langoustine shells.

In a press release, high-end retailer Waitrose wrote that is working with Scottish biotec company CuanTec to work on a new film for food packaging made out of waste langoustine shells.

The new packaging, which is at an experimental stage, was shown to HRH The Prince of Wales during a visit to Waitrose & Partners Food Innovation Studio.

CuanTec – based in Motherwell and Oban – takes waste langoustine shells created from seafood processing to make a natural polymer – which can then be turned into a flexible film. The material also has the potential to be both industrially and home compostable.

Waitrose hopes the new packaging could be used as an alternative to conventional plastic film on some of its fish products in 12-18 months time, including Waitrose Duchy smoked salmon.

CuanTec CEO Dr Cait Murray-Green said; “For us this technology represents the perfect virtuous circle. As well as protecting food on sale to consumers, it gives value to what would have been a waste product and takes single-use plastic out of the food system, meaning that less waste goes to landfill.”

Waitrose & Partners packaging manager Karen Graley said: “While we are still at an experimental stage, the potential for this new packaging material is incredibly exciting. Conventional plastic films can’t currently be recycled, reused or composted – so finding an alternative which doesn’t go into landfill would be very significant in helping us reach our target of ensuring that all own label packaging is widely recyclable, reusable or home compostable by 2023.”


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