The machine-made charcoal is the best replacement for ancient's charcoal,it save the forest source.Owing to it is made from the wood sawdust without any chemical additive ,so it is 100% natural .Otherwise ,it's smokeless, no poison, no peculiar smell, no cracking, high calorific value (7800-8500 calories./kg), low ash content(3.68%) and burning endurance (200mins) which is especial suit for BBQ,it's as good as wood charcoal but the price is much lower than the wood charcoal.