A defrost vessel for a microwave oven includes a body having a certain
space therein for receiving a refrigerating load, and an antenna
connected to the body for oscillating a microwave into the space of the
body. When microwave is supplied into a cavity of the microwave oven, the
microwave is oscillated into the space of the body by the antenna and
thus the microwave is deeply penetrated up to inside of the refrigerating
load. Also, the microwave is secondly emitted into the space of the body
from an edge of the slot, thereby completely defrosting the refrigerating
load.