What is dehydrating food good for?

What is the purpose of dehydrating food?

Have I ever told you how I snack healthily between meals? One day I discovered dehydrated foods and since then I haven't indulged anymore. They're a lifesaver for my moments of temptation!
Arugula, lemon, and toasted pine nut risotto

Arugula, Lemon and Toasted Pine Nut Risotto

This delicious risotto can be prepared in a casserole or a pot, or we can even make it in no time in our Kuhn Rikon Duromatic pressure cooker.