... cost, high output 4.usage:fuel,BBQ Material: The source of material is wide,could be coconut shell, peanut shell, stalk ... wood shavings, bamboo crumbs ,sawdust,and rice hulk is the best of all.advantage of machine-made charcoal :high density,low ash content, ... pollution, safe and inflammablequality index:charcoal content >85%calorific value >8000 calash content <5%volatilization <15%moisture<4% coconut ...