Quote Originally Posted by wilomn View Post
When you have solids, like eggs in the incubator, the temperature change is not as quick as it is in an empty incubator because some of the volume of the inside is now occupied by the eggs, which will take much longer to change temps, thereby helping by their very mass, to keep the temps stable.

When you open an empty incubator, there is a transfer of air and a quick temp change, hence the condensation.
So 24hrs is not long enough?