Note:After being stored for some time, a layer of white frost may appear on the surface of dried scallops. This frost is actually composed of components from the seawater contained in the fresh adductor muscles. As the fresh adductor muscles dry, the water from the seawater gradually evaporates. The alkaline substances in the seawater, after prolonged exposure to air, form mannitol. Therefore, this layer of white frost on dried scallops is a normal phenomenon and is safe to eat.