Are you oftentimes reluctant to start the wood burner because of the sheer overhead and mess of wood logs? But you don’t have to worry about your house smelling like the local coffee hangout, as Coffee Logs don’t smell of coffee when they’re burning. Waste coffee grounds are an amazing material - they contain 20% more energy than wood, so Coffee Logs burn hotter than other solid fuels.

They’re a true example of circular energy use, where waste products that would ordinarily go in the bin are turned into a fuel source. Instead, they have managed to create a sustainable alternative to fossil fuels that packs the speed and strength of caffeine. They are designed for use in log burners and multi-fuel stoves, though can be used in some open fires too. Fireplace logs made of coffee grounds burn hotter longer and emit less carbon dioxide than wood logs, according to companies that manufacture them. Hi tried to make my own coffee logs but despite ensuring everything was melted and coffee grains mixed in to make the sludge mixture, I was left with a top film of wax, like it had separated.To add to all this, we have the feel-good factor of knowing that you’re using a product produced from 100% waste, and which saves on greenhouse gas emissions. The amount of molasses used varies by reference recipe, with the consensus being to make sure you have a generous portion coating the bottom of your pan. Thankfully, with Firemizer, no clumps were left and we were able to brush off the collected ash into the pan.

I also find they produce a lot of ash – unlike logs – and the ash is more like coal ash than wood ash, so builds up.Smouldering fuel to try to extend burn time is bad for your stove, flue and the environment due to unburned particulate matter in the smoke.