A growing population also requires more food. African states face stiff challenges in this area. In the past, inadequate technology and local processing of raw materials have led to significant post-harvest losses. This leads to widespread malnutrition, which is compounded by other factors. In Uganda, matoke bananas now professionally handled in a processing centre, which turns the resources into valuable dry products such as flour, porridge or biscuits. This is managed by a Tietjen hammer mill.