The researchers optimized the calorific value of biomass briquettes made from bush mango shell and palm pressed fibre. By varying the biomass composition, dwelling time, and compression pressure, they found that increasing the bush mango shell content led to a significant improvement in calorific value. The best performing briquettes had a 75:25 ratio of bush mango shell to palm pressed fibre, with an optimal calorific value of 19.03 kJ/kg achieved at 40 minutes dwelling time and 25MPa pressure. These briquettes burned efficiently at a rate of 0.472g/min, making them suitable for use in renewable energy applications.