Made and sold by Appropriate Energy Saving Technologies Limited, AEST Agricultural waste briquettes are charcoal briquettes from various recycled agricultural wastes.
AEST is based in Soroti, Uganda.
Distributors / Implementing Organizations
Mass produced using a specially constructed motorized extruder using an old meat grinder.
Intellectural Property Type
User Provision Model
Women in Uganda distribute the briquettes. Customers can come to the local shops, or may go straight to the production site to purchase them in Uganda. AEST also takes orders for mass quantities.
Distributions to Date Status
Over 50,000 kg of charcoal. Over 1,000 individual households, 2 orphanages, 15 schools, 40 restaurants, and 10 hotels have used this product.
Higher heating value (MJ/kg)
Types of primary pollutants
Diameter: 5 cm Length: 20 cm Weight (kg): 0.05 - 0.10
Provided by the manufacturer
Single use product.
N/A, single use product
Manufacturer Specified Performance Parameters
Smokeless and sootless and 40-50% energy conserved.
Vetted Performance Status
Guidelines provided by AEST must be followed when manipulating the product.
Complementary Technical Systems
AEST also produces and distributes its own clean cooking stove to go with the briquettes it produces to enhance the efficiency and reduce emissions.
Academic Research and References
O’Neill, M., Wagner, A (2017). Wear-Resistant Extrusion Auger for the Production of Charcoal Briquettes from Agricultural Waste. Mechanical Engineering Senior Thesis. Santa Clara University.
Wang, L (2016). The identification and validation of case hardening for extending charcoal briquette extruder lifespan. Massachusetts Institute of Technology. Department of Mechanical Engineering.
Further academic research is here.
Compliance with regulations
AEST's awards and recognition here.