Keeping Crops Cool: fascinating field fridges in Africa

Fresh-picked vegetables and fruits last longer if they can be kept cool. African farmers use 'charcoal coolers' to store their crops before packing. Could you make a fridge with pieces of wood, some netting, a length of pipe and some charcoal? Find out who does and how the technology works.
Find out more about farming on the LEAF Virtual Farm Walk website, www.virtualfarmwalk.org