This coal is available in 25 & 26 mm sizes which are perfectly suitable for smoking on foil. There is no bad smell during the ignition due to the absence of chemical additives in the composition. It is needless to say about heat transfer and a small amount of ash everything is at a high level with the shape of a cube. Weight 1 Kg/ Boxes 10 Kg Master Box Ash Content 2% - 5.5% Total Moisture 6% Gross Calorific Value 7.000 Kcal/Kg Packing Carton Box (Inner Plastic) Burning Time Above 1.5 Hours Size: 26mm x 26mm x 26mm & 25mm x 25mm x 25mm Shape: Cube Hexagonal Finger