Coffee Grounds Turned into Fire Logs: Bio-bean’s Circular-Burn Venture That Didn’t Last

Bio-bean turned used coffee grounds into Coffee Logs, marketing them as burning 20% hotter and longer than kiln-dried wood and claiming ~80% lower emissions vs landfill. Independent testers found moisture around 10% and burn performance generally on par with kiln-dried wood, with the 20% hotter claim appearing marketing-driven. The venture struggled financially after a 2023 plant fire and rising costs, went into administration, and its branded logs stopped production after assets were sold to Envar Composting; remaining stock is aging. Still, the idea of diverting waste coffee grounds into fuel illustrates a circular-economy approach, even if the product didn’t scale.