Coffee is one of the most popular drinks in the world and is drunk by a large number of us daily, this generates a lot of waste material, in particular, those spent coffee grounds that went into making your cup of Joe.

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Researchers from Washington State University have come up with a way of using these materials by creating a new plastic composite material made partly from waste coffee grounds.

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It’s hoped that the work could lead to new applications for 3D printing as well as make better use of waste materials. Reporting in the journal, ACS Sustainable Chemistry and Engineering, the researchers found that their material, made from up to 20% coffee waste, had a more than 400% increase in toughness over pure poly‑lactic acid (PLA), the type of plastic that is most commonly used in 3D printing. PLA is a plastic material used for many medical and […]

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