A popular form of biomass briquettes emerging in developed countries is called Sawdust Briquettes. It takes the waste by-product of saw mills such as sawdust, compresses it and then extrudes it to make a reconstituted log that can replace firewood. There are no binders involved in this process. The natural lignin in the wood binds the particles of wood together to form a solid.   Burning a Sawdust Briquettes is far more efficient than burning firewood. Moisture content of a briquette can be as low as 4%, whereas that of firewood may be as high as

A popular form of biomass briquettes emerging in developed countries is called Sawdust Briquettes. It takes the waste by-product of saw mills such as sawdust, compresses it and then extrudes it to make a reconstituted log that can replace firewood. There are no binders involved in this process. The natural lignin in the wood binds the particles of wood together to form a solid.   Burning a Sawdust Briquettes is far more efficient than burning firewood. Moisture content of a briquette can be as low as 4%, whereas that of firewood may be as high as