Spent coffee grounds reveal a route to biodiesel and other bio-based products‎

Coffee grounds that usually end up being thrown away can have a second life as a raw material for producing biofuels and other high-value-added products. A study by the Universitat Rovira i Virgili (URV) has evaluated how to extract oil from coffee grounds efficiently while preserving the rest of the plant material so that it can also be used in other processes.