Electric Food Dehydrators are available in all forms of shapes and sizes differing greatly in both quality and price.
A smallish, low priced food dehydrator that costs between $30 and $40 will have the heating source situated at the base of the appliance and it can easily take up to 3 days to dry certain sorts of foods.
This may possibly be just fine for the occasional use and will be wonderful for keeping the kids interested for a few hours.
When however you are looking for a far more substantive and reliable system to preserve food either for snacks, camping, backpacking or survival situations then you have to expect to spend more for a better model.
My husband always says that we buy the best for the least, no matter what we are buying.
What you will be looking for is a dehydrator that delivers fast, even and wholesome drying of food.
Here is a list of the main features and many benefits that the more expensive, top of the range, electric food dehydrators provide.
Top mounted fan that means that liquids do not drip down in the heater chamber.
No flavor mixing.
Digital timer that is programmable for up to 48 hours of drying time.
Opaque exterior that blocks light to help you preserve more of the foods nutrition and vitamins in the course of the drying process.
The question which you will need to ask yourself is, which of these features can I do without whilst still delivering speedy, even and nutritious food.
My short list of essentials for an electric food dehydrator would be as follows: top mounted fan, opaque exterior, horizontal air flow, expandable tray system, adjustable drying pressures and I would rather have a reasonably fast drying system.