Charcoal Briquettes from Agricultural Waste
Charcoal briquettes is powdered or crushed charcoal mashed and molded using binder which
can either be cassava, corn or camote powder. As fuel, charcoal briquettes gives more heat
than ordinary charcoal or wood. It is almost smoked-free and heat is consistent. The fire lasts
longer than ordinary charcoal and can be easily stored or transported because it is lighter in
The briquettes which are hard can be used in industrial ovens instead of using carbon in
melting the metal from iron ore or stone.
Charcoal briquettes can be made from rice hull, coconut barks, twigs or shells or husk and
powder from husk and wooden saw dust, wood trimmings, twigs, branches and the like.
Aside from fuel, the briquettes can be used in different industries such as in making carbon
disulfide, carbon electrodes, carbon tetrachloride, carbon carbide, sodium cyanide and
activated charcoal. Activated carbon is used in filtering air or water.
Materials Needed, Tools Needed
Smoke free charcoal Hammer
Cassava, corn or Pail
camote starch Molds
Jar or drier
The briquettes can be made manually or by machine. The method is easy specially in places
where coconut is abundant.
Procedure (briquettes made manually)
1. Prepare a smoke free charcoal – can be determined when it is shiny and has metal-like sounds when it falls.
2. Crush the charcoal by the use of a hammer.
3. Cook the cassava powder (or camote or corn) in a moderate heat. The starch that will be released must be syrupy but not thick. This will serve as binder.
4. Mix well the powdered charcoal and the binder in a pail or container.
5. Knead this as in bread-making.
6. Place in corresponding molds.
7. Let it dry under the sun. Oven drying is preferable.