Housing
The Secret to Less Smelly Sewers: Old Coffee Grounds
Researchers at the City College of New York think they've found a way to use coffee to neutralize a city's most unpleasant odor.
Is there anything caffeine can't do?
Researchers at the City College of New York think they've found a way to use coffee to neutralize the unpleasant odor of sewers. Specifically, they're interested in coffee grounds, which they cook to around 800 degrees Celsius until the itself-smelly material is black and carbonized.