There are various practices that can be carried out to enhance the preservation of different kinds of food to avoid them from spoiling hence enhanced shelf life. Food drying is one of the most common food preservation method that can be practised easily in all places where the food is dried hence preventing the growth of yeasts, bacteria or molds by removing water from the food. When drying food as a preservation method, one can dry it under the solar or can make use of the food dehydrators that helps extract moisture from the given food hence aiding in preservation. Food drying through the use of a food dehydrator can be done on almost all kinds of foods such as vegetables, fruits as well as animal proteins.
Food drying through the use of a food dehydrator usually requires a source of heat and the air flow to help extract water from the food. There are a variety of energy sources that can be used by a food dehydrator including include electric power, solar power or even a biofuel. The food dehydrator consists of various basic parts that enhance food drying which may include the heating element, air vents that allow air circulation in the device, a fan as well as food trays where one can lay the food. Food drying in a food dehydrator is usually carried out through the heating element, air vents that allow air circulation in the device and a fan which work simultaneously with each other in removing moisture from the food.
When using a food dehydrator, the heating element will warm the food allowing it to remove moisture while the fan will then blow out the moist warm air from the appliances through the air vents. The process usually takes place for a set period of time till the moisture that remains in the food is less than 20%. The dehydration temperature in the device usually depends on the type of food being dried for example most foods are usually dehydrated at 1300F while for the meat jerky, the temperature has to be increased to about 1550 F. To ensure that food drying is done in the right way, the food dehydrator usually maintains an adequate flow of air in the device and a constant temperature. A suitable temperature that is not very high should be maintained to ensure that the food is not very dry and hard on the outside while it moist in the inside which makes it vulnerable to spoilage.
There are certain factors that one can consider when purchasing a food dehydrator that they can use for food preservation. The model of the dehydrator, the kinds of food to be dried, space one has to accommodate the food dehydrator as well as its cost are some of the factors that one can consider when purchasing a food dehydrator.