Joe diesel

Mano Misra, Susanta Mohapatra, and Narasimharao Kondamudi of the University of Nevada-Reno are hoping that waste coffee grounds could be used to make an environment-friendly vehicle fuel of the future. Every time you have a cup of Joe, those filter dregs are wasted. The Nevada team, however, explain that spent coffee grounds contain between 11 and 20 percent vegetable oil by weight, which is about the same as traditional feedstocks for biofuels including rapeseed, palm, and soybean oil. The researchers are planning to develop a pilot plant to produce and test the experimental fuel in 2009.