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By April 2, 2012 Read More →

Dehydrating Foods – A Pros and Cons Analysis

Drying is the oldest method of preserving food.  The early American settlers dried foods such as corn, apple slices, currants, grapes, and meat.  Compared with other methods, drying is quite simple.  In fact, you may already have most of the equipment on hand.  Dried foods keep well because the moisture content is so low that spoilage organisms cannot grow.

Drying will never replace canning and freezing because these methods do a better job of retaining the taste, appearance, and nutritive value of fresh food.  But drying is an excellent way to preserve foods that can add variety to meals and provide delicious, nutritious snacks.  One of the biggest advantages of dried foods is that they take much less storage space than canned or frozen foods.

Recommended methods for canning and freezing have been determined by research and widespread experience.  Home drying, however, does not have firmly established procedures.  Food can be dried several ways, for example, by the sun if the air is hot and dry enough, or in an oven or dryer if the climate is humid.

With the renewed interest in gardening and natural foods and the desire for self-sufficiency, drying foods at home is becoming popular again.  Drying is not difficult, but it does take time and a lot of attention.  Although there are different drying methods, the guidelines remain the same.

Although solar drying is a popular and very inexpensive method, some areas do not have a suitable climate for it.  Dependable solar dehydration of foods requires 3 to 5 consecutive days of the temperature at 95 degrees F and very low humidity.

Drying food in the oven of a kitchen range, on the other hand, can be very expensive.  In an electric oven, drying food has been found to be nine to twelve times as costly as canning it.  Food dehydrators are less expensive to operate but are only useful for a few months of the year.  A convection oven can be the most economical investment if the proper model is chosen.  A convection oven that has a controllable temperature starting at 120 degrees F and a continuous operation feature rather than a timer-controlled one will function quite well as a dehydrator during the gardening months.  For the rest of the year, it can be used as a tabletop oven.

Dehydrating is also a good alternative or supplement to canning for produce preservation.  Since the foods compact down in size and weight, you may find it easier to store in large quantities.  Dehydrated foods also make great additions to 72 hour kits since they can pack a lot of calories and nutrition into a small space. When dried at low enough temperatures, the foods are considered “raw” still and therefore retain most of their nutrients (great news in emergency situations).

While you can purchase dehydrated foods in #10 cans from many different sources, it is so simple and easy to dehydrate your own that it is typically not worth the expense of buying them. We love the dehydrated foods we bought and can’t wait to make more of them on our own.

 



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1 Comment on "Dehydrating Foods – A Pros and Cons Analysis"

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  1. I have a bit of (hopefully) constructive criticism. I’ve been using an Excalibur dehydrator for a while now and I am really beginning to enjoy and respect dehydrating as a viable food preservation method. Specifically, to say that “food dehydrators are.. only useful for a few months of the year” is not true, unless you’re referring to passive solar methods, which I don’t think you are. I can use my Excalibur anytime of the year. Also, the statement “dehydrating will never replace canning and freezing…” is likely backwards. I have to imagine that people have been drying foods long before they were canning or freezing. Besides, I think that dehydrated foods are better tasting and contain more nutritive value than canned foods, although I can’t currently prove the nutrition topic whereas the taste is subjective. Consider this lady’s website: http://www.dehydrate2store.com. She does a great job of explaining dehydrating and does it all for free.