Things aren't as bad as they seem.

Researchers at South Korea's KIGAM institute converted spent coffee grounds — at 55% moisture, no drying needed — into high-grade biochar in 90 seconds using flame plasma pyrolysis. The resulting fuel matches anthracite coal in energy output at 29.0 MJ/kg, and the process produces almost no smoke, tar,
Wet coffee grounds become clean solid fuel in 90 seconds flat
Wet coffee grounds become clean solid fuel in 90 seconds flat

22.06.2026

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Wet coffee grounds become clean solid fuel in 90 seconds flat
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