... 3.low cost, high output 4.usage:fuel,BBQ Material: The source of material is wide,could be coconut shell, peanut shell ... is the best of all.advantage of machine-made charcoal :high density,low ash content, no smoke ,no smell, no pollution ... %calorific value >8000 calash content <5%volatilization <15%moisture<4% coconut shell of machine-made charcoal making line