1.environmental friendly 2.safe to use and inflammable 3.low cost, high output 4.usage:fuel,BBQ ... , peanut shell, stalk shell,corncob,sawdust and so on, wood shavings, bamboo crumbs ,sawdust,and rice hulk is the best of all.advantage ... ,low ash content, no smoke ,no smell, no pollution, safe and inflammablequality index:charcoal content >85%calorific value >8000 calash content ...