Well lets see...we have been storing the eggs under the house to keep them out of the 74+ degree weather. We had them in the fridge outside in the pole barn because it was running around 55 degrees but the eggs were getting too much condensation on them so under the house was the second choice. We turn the eggs 3 times a day even when they are in the hatcher and store them in the little egg cartons we purchased from Murry McMurry. I cut holes in the bottom where each egg goes so they could get more air. Every 5 to 7 days the old man starts another batch in the incubator. We have a cabinet type (old) forced air incubator. And I was wrong about the birds ages they are a little over 2 years old. My bad. Anyway...It is frustrating. The next batch of eggs are the ones that we started to keep cooler so maybe that will end up being the difference. I think I answered all your questions, and thanks for asking.