Along with all the coffee we drink every day, over 6 million tons of spent coffee grounds are produced annually worldwide. Some of these grounds are reused as biofuel but the rest are disposed of in landfills. Along with all the coffee we drink every day, over 6 million tons of spent coffee grounds are produced annually worldwide. Some of these grounds are reused as biofuel but the rest are disposed of in landfills. Agriculture Phys.org – latest science and technology news stories
Upcycling spent coffee grounds by isolating Mannan-rich Holocellulose nanofibers
