Sugar cane is the primary and potential source of sugar in all tropical and subtropical countries of the whole world. Uses of sugar cane encompass the production of sugar, molasses, soda, rum, Falernum, cachaca and ethanol for fuel. The bagasse which remains after sugarcane crushing may be burned to offer both heat energy, employed in the mill and electricity, which is typically sold to the consumer electricity grid. It can also, because of its high cellulose content, be widely used as raw material for paper and cardboard.