Originally Posted by Addie
And you are not the Village Idiot. Not is this village anyhow. We don't have idiots. Just nice people.
I'm the village idiot. Just ask my boss. In reality, I do have an answer for you.
As Addie said, egg whites contain a fair amount of water. Steam will not go through the egg shell, but water vapor will (think GoreTex). As the vapor exits the egg, probably due to osmotic pressure, a vacuum is formed that draws in air and any odor molecules small enough to pass through the pores. This is why the bubble forms, and enlarges over time, and the eggs absorb other flavors.
As for the paper carton, it helps, but as you said, won't seal the eggs completely against odors. But then, neither will plastic. We used plastic shells to contain lead-acid batteries that we sold to customers. We used plastic because the outgassed hydrogen from the batteries, if contained by a metal enclosure, created an explosion hazard. The hydrogen molecules though, were small enough to pass through the plastic shell, nearly unimpeded, eliminating hydrogen buildup.
So yes, paper cartons help. Plastic helps more. But the best way to keep your eggs from gaining unwanted flavors is to use them up within a week or so after purchase.
Hope that helps.
Now, I think I'll go home, make mistakes while creating Easter goodies, and be the village idiot. And remember, when people think you're the village idiot, they expect less of you, and you can get more of what you want to do done.
Seeeeeeeya; Chief Longwind of the North