I don't think I would personally go that far out on a limb and claim that corn starch or sorghum packing peanuts are "perfectly safe". I would agree that they are safe with regard to being "non-toxic" to the environment, but do bear in mind that these little gems of digging delight are not produced in plants that make food products...ergo, safety IS an issue if your fuzzy decides to eat these things like my Buddy Bear did. It took some time to trace the origin of Buddy's chronic diarrhea, and I finally found him noshing away one day in the dig box. Once his packing peanut diet was eliminated, so was the diarrhea! Non-toxic starch peanuts also produce a lot of dust if not changed frequently...not the best thing for burrowing noses. To each his/her own. Bonnie Tormohlen Managing Director Northern Arizona Ferret Alliance & Rescue, Inc [Posted in FML 7607]