Turning Coffee Grinds Into Biodiesel

A breakthrough in biofuel may be hidden in your garbage can. Researchers at the University of Cincinnati have discovered a way to turn used coffee grinds into biodiesel. They say that the process extracts oil from the spent coffee grounds, which is made into a biofuel. Then, the dried grounds are reused again to filter impurities out of the fuel. The new process could replace the corn and soybeans that are currently used to make biofuel, and those crops could be saved to use for food. Americans alone throw out about one million tons of coffee grounds each year, which means we're dumping a ton a natural energy into landfills everyday. If these spent grounds could be used to power our cars, trucks, and homes, we'd have a constant supply of cleaner energy, and a great excuse to drink more coffee.