Food dehydrators require wind sources such as solar energy, electric power or biofuel to preserve and extend the shelf life of various foods.
A food dehydrator is a device that removes moisture from food to aid in its preservation. Most modern food dehydrators are low-power convection ovens that uses heated air flow to reduce the water content of foods. Food drying is a method of preserving fruit, vegetables and meats that has been practiced since antiquity. Thus, food dehydrators are used to preserve and extend the shelf life of various foods. Food dehydrators require heat sources such as solar energy, electric power or biofuel, and vary in form from large-scale dehydration projects to do-it-yourself projects or commercially sold appliances for domestic use. 
