Instead of waiting until the recommended 14th day to candle the eggs again, we plan to do it sooner to avoid any smelly eggs or egg explosions inside the incubator. At that point, we will probably compost any eggs that look like duds. The incubator is actually made of Styrofoam, and an egg explosion may just ruin it.
Here is a photo of our candling process. The photo does not really show much. The eggshells are brown and some were very hard to see through.
Thanks for following us--we will keep you updated on our incubation!