 open/close door of the quick freezing apparatus according to the present invention.  FIG. 0A illustrates an electron microscope image of a mackerel thawed after being frozen-preserved using the quick freezing apparatus and method according to the present invention, and FIG. 0B illustrates an electron microscope image of a mackerel thawed after being frozen-preserved using a conventional quick freezing apparatus and method.  FIG. 0A illustrates an electron microscope image of a lobster thawed after being frozen-preserved using the quick freezing apparatus and method according to the present invention, and FIG. 0B illustrates an electron microscope image of a lobster thawed after being frozen-preserved using the conventional quick freezing apparatus and method.  