We've been getting so many eggs, upwards of nearly a dozen a day which is what we dreamed about when first starting chickens. We're to the point that we can spare & share & even give out some birds as they were given out to us. It has just taken us 3 years to get here & we're glad of the learning curve that we've been given. What I have noticed is due to the heat, the chickens all go off laying in July, so I'm trying an experiment to prepare for that.
How did people preserve their eggs before refrigeration? Ideally there would have been a spring house but most generally there was a root cellar or cold pit. This involves something of egg science. The freshly laid egg is covered w/ a protective bloom which allows the egg to not go bad while the hen builds up enough eggs for her to sit on a full clutch. As the chick develops the bloom wears off so oxygen & waste exchange can occur on the shells surface.
The supermarket suppliers wash off the bloom of the eggs
to keep them clean & in so doing allow the egg to spoil at a
faster rate causing you to buy more eggs if they've been sitting too
long. Eggs like a high humidity which is the type of environment a
refrigerator is working against.
As our eggs do not always leave the hen house sparkling clean (hint to
change the straw) I also wash them off in cool water to remove whatever
was stuck to the chicken feet. Cool water, not warm as warm water will open the pores of the chicken shells & let in whatever it is you're trying to wash off.
Date the carton.