Because generally this kind of baked, fried food produced when it should be eaten while hot, put a long time not only does not taste good, but also may not be fresh, so it is very bad for the body. If sealed in a food bag and placed in the refrigerator, perhaps the shelf life will be longer, but it is easy to become soft, the skin off, "rotten". It is better to store them at room temperature. Of course, the shorter the storage time, the safer to eat.