Large fraction from 20 to 160 mm.
Mix of oak, hornbeam, ash, birch. 100% natural with no additives or chemicals added.
Carbon content min. 80%, ash max. 2%, moister max. 4%, volatile matter - 17,8 %.
The specific heat of combustion around 6600 kcal/kg.
Charcoal packed into 2,5 kg paper bags or any specified by the buyer.