New owner jitters

[jarich]

This is true especially for meat. Freezing doesnt kill many bacteria, it just slows them dramatically. So when you thaw it, they start producing again. This is especially true of bacteria that were in the stomach and intestines of the mice/rats. By the time you thaw them a second time you are really pushing it with the bacterial growth. Also, the freezing process turns water in the cells into ice crystals, which are incredibly damaging to the cell walls in animals. Thats why when you thaw meat out you notice it is very watery compared to its fresh counterpart. Freezing it again can leave you with a gross watery mess of a feeder animal. And lastly, freezing meat causes fat to oxidize; repeated freezing can make the fat in the animal turn rancid.