... mars, 4. high- temperature, homogeneous combustion, burn for long time, 5. smokeless, innocuous, odorless, safety and non-pollution.Analyzing Index:Calorific ... : after 20 minutes burning, smoke and other smell will disappear.5. Appearance: cylindrical shape (48*60mm) , briquette (46*28mm).Packing:1 ... (PP) Knitted Bag, i.e. PP bag. BBQ Charcoal briquette 04#