Waxed Coffee Bio Charcoal

Hello Roasters, Baristi and Coffee Lovers Friends!

Are you wondering what else can you do with your coffee chaff and used ground coffee?
As deforestation is a big issue all around the world and the making of charcoal is costly for the trees, let us use coffee waste to make bio charcoal.
Coffee Bio Charcoal burns longer and has a nice smell of coffee.

For this recipe, you will need

750g of well dry used ground coffee (dry for at least 4 to 5 days) or coffee chaff or both mix together
225g candle wax
500ml of molasse

a round baking tray
a large aluminium bowl
a wooden spoon
silicon muffin trays

  1. On small flame, on the stove, place the round baking tray, with some water – bain Marie. Add the aluminium bowl inside the baking tray. Once the bowl is well hot, add the candle wax and the molasse, and let they melt for around 30min. Then mix them well together. Then let them on the heat for further 5 to 10 min. Then remove the bowl from the bain Marie.
  2. Add the coffee into the wax molasse mix, and mix thoroughly.
  3. Spoon little patties of the mix into the silicon muffin tray with the help of soup spoon. Press the patties well deep into the silicon tray in order to get well compact briquettes.
  4. Once you done putting all the the mix into the muffin tray, place the tray into the freezer. Leave it there for 1 hour.
  5. After 1 hour into the freezer, remove the tray from it, then unmold the briquettes, place them on the barbecue, spray some lighter fluid on them, voilà!

Régine Guion-Firmin

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