Wet coffee waste becomes coal-grade fuel in under two minutes
Researchers at the Korea Institute of Geoscience and Mineral Resources have developed a plasma-based process that converts wet coffee grounds into coal-grade biochar in under 90 seconds, with no pre-drying required. The

Researchers at the Korea Institute of Geoscience and Mineral Resources have developed a plasma-based process that converts wet coffee grounds into coal-grade biochar in under 90 seconds, with no pre-drying required. The
