Oregon State and Korea researchers have made a key advance in turning spent coffee grounds into food packaging materials that can extend the shelf life of products.
An estimated 60 million tons of spent coffee grounds are generated worldwide annually. Most end up in landfills and release methane, a potent greenhouse gas. That has led researchers to study other uses for coffee grounds, such as incorporating them into biofuels, cosmetics, catalysts and composite materials, including concrete, and now food packaging materials.
Packaging material made by Oregon State University researchers using spent coffee grounds.
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