Its closed the water Ice stays in the freezer, but it melts a little and the vapor comes from the defrost cycle when it heats up the frost on the cooling fins to melt it off. But It would take an incredible amount of time to melt a full ice maker load of ice.<quoted text>
Actually, evaporation from the ice trays is probably one of the sources of the frost that accumulates in a freezer that is not designed to be frost-free. I'm not sure, but I suspect that frost-free freezers work by circulating dry air in the compartment, which would increase the rate at which the ice evaporates. Ever notice that foods kept in air-tight containers accumulate frost? That comes from water that evaporates from the food and then refreezes.
Its in a tray eventually it would become a solid block.
The frost inside a sealed container comes from water vapor in the container. A frost free freezer has a defrost timer that heats up a coil to melt off the frost on the fins. Air is actually up to 5% water vapor.
I mean think of it this way , people have summer homes that keep ice in them for a whole year with imperceptible melt off.