Why was leftover food put into big bins during the war?

During the war, leftover food was often put into big bins to minimize waste and ensure that any edible food could be collected and redistributed to those in need, including soldiers and civilians facing food shortages. This practice was part of broader efforts to conserve resources and maintain food security during times of scarcity. Additionally, it helped streamline food management systems, making it easier to collect surplus food for redistribution.