... Biogases, Caster Shells/Stalk, Coffee Husk, Paddy Straw, Sunflower Stalk, Cotton Stalks, Tobacco waste , Jute waste, Bamboo Dust, Tea waste, Wheat ... you Requirements for briquetting a. size of raw materials: 3-5mm b. moisture content of raw materials: sawdust 15-23%, others <30 ... % c. raw materials can be the mixture of 2 ...