In Your Right to Be Beautiful, Tonya Zavasta recommends buying a low-wattage dehydrator that can be set at 95 degrees or lower, as most raw food recipes do not call for temperatures above 110 degrees.
Practical Items: Farmers are by nature very practical, and useful gifts such as a multi-tool or pocketknife, barometer, rain gauge, or food dehydrator kit can be perfect for any occasion.
Although it is easy enough to purchase a food dehydrator from just about any big box retailer, including Wal-Mart, freeze drying is a fairly intensive process.
An oven can serve as a dehydrator at a temperature of 70 degrees, and those with adequate elbow grease can hand blend soups with a spoon.
If you plan on making raw vegan recipes on a regular basis, you should definitely invest in both a good blender and a food dehydrator.
Also, many raw food dieters use their dehydrator to produce crackers, cakes, cookies, and other foods similar to the cooked versions.
Harvestessentials.com - This site is run by a juicer and dehydrator manufacturer, but the recipes page is not overly salesy.
If you happen to have a dehydrator, you can also use that to dry your sweet potatoes just as you would any other vegetable.
I did that on purpose to save time and to make it easy, but as you get more advanced you will want to use a dehydrator.
It is readily nitrated to nitrobenzene, two, and even three nitro groups being introduced if some dehydrator such as concentrated sulphuric acid be present.