The shells of crabs and their fellow crustaceans are usually treated as waste, but modern technology is finding a wide use for them. The latest innovation is a material that not only extends the shelf life of produce, but even removes chemical pesticides and herbicides from it.
A Cracking New Use for Shellfish Waste: Extending the Life of Produce
https://sustainablebrands.com/read/product-service-design-innovation/shellfish-waste-extending-life-produce
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