GreetingsThe preferred specifications for the sourced charcoal are as follow:LUMP CHARCOAL TECHNICAL DATAS:100% natural hardwood charcoalTotally organic wood (pesticide, fillers, petroleum additives and preservatives free)Free from charcoal residues, ashes and strange matters.Free from other residue of sawmill woods.Moisture Contents %5% to 8%Ash Contents %3% to 5%Volatile Matters %17% to 22%Fixed Carbon Contents %Minimum 70%Regards Show More