Raw cocoa beans are turned into raw cocoa powder and cocoa butter which are the base material for many chocolate products. The cocoa beans are stored in large storage bins and distributed into smaller vessels as they are separated and processed. The large sizes of storage silos, combined with the dusty environment and the irregular allocation of material inside the silos, make accurate measurement of stored levels very difficult. Accurate level measurement is the basis for continuous inventory tracking to ensure the supply of beans to the production.