Triet S,
Raw dehydrated is usually actually freeze-dried, which maintains all of the nutrients of raw, but in a convenient, dry form that keeps a lot better. Raw frozen is exactly that. It contains all of the natural moisture of the original composition, and is kept frozen to keep it from spoiling. One of the disadvantages here is that it’s generally recommended to thaw it before feeding, and you don’t want to do that in the microwave, as that will cook it a little and alter some of the proteins. I usually thaw a couple of days worth of Galen’s Darwin’s Natural Selections in the refrigerator at least 24 hours prior to feeding. His freeze dried treats require no refrigeration or freezing to maintain their quality, so the’re easier to carry as treats. As for freeze dried that is meant as a staple food, like Primal freeze dried nuggets, it is recommended to add water to rehydrate it for a specified time prior to feeding.
