The used coffee beans you throw away could help power your car. The process for extracting oil from coffee grounds used to be long and expensive.

Researchers at Lancaster University in the U.K. have now simplified the process so it can be transferred more efficiently from the garbage to the gas tank. The new all-in-one method takes only 10 minutes and reduces the use of harmful chemicals, making it more eco-friendly than soybean or corn.

Researchers say they could produce 720,000 metric tons of bio-diesel annually. One day, even our cars will need a morning cup of joe.