You can sell it same day. Refrigerating only keeps the egg fresher for a longer period of time as opposed to being say, on the kitchen counter.
If eggs start out as Grade AA, they remain AA for only two weeks if properly refrigerated. After that, they'll be Grade A for another 2 weeks.
Eggs can remain edible for even longer than one month, but freshness (egg yolk that sits firm and high, and a thick viscous egg white) will be noticeably less after two weeks.
Higher grade eggs have a very shallow air cell. In AA quality eggs, the air cell may not exceed 1/8 inch in depth. Eggs of A quality may have air cells over 3/16 inch in depth There is no limit on air cell size in Grade B.
I'd be delighted if I could sell mine the day they were laid. Usually doesn't work out like that though. I wash and refrigerate mine every day and do not sell eggs over a week old.
I sell my eggs anywhere from 1 day to 5 weeks old. Any left over after that time period become "omelette Sunday". I keep my eggs in the fridge because my "customers" are more comfortable with that, and I feel more comfortable storing them for a longer period of time that way. Word of advice though, a fresh egg (less than 1 week old) is difficult to peel, making them a poor hard-boilded choice. An egg that is just a day or two old is almost impossible to peel. So I typically only sell eggs that are over a week old, or, if they are newer than that, make sure to tell my "customers" not to use them for hard-boiling for a few days (or plan on scraping the egg out of the shell with a spoon!).
Thank you all for the input. I'm sorry if that has been asked before, but couldn't find it in my searches. And google didn't seem to have the answer either. Thanks for the info.
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Just my way of hard boiling fresh eggs. Start with room temp eggs. Slowly lower egg into boiling,
(yes, boiling) water. Bring back to a boil, take off heat, cover and let stand 17 min. If you're using them for deviled eggs, turn them a couple of times to keep yolk centered. Drain off hot water, and then keep covering with ice cold water for the same amount of time you kept them in hot water. This keeps the yolks from turning green. I then peel, starting with the large end. Works every time for me!
Jenh - Yep, that's the way I hard boil my fresh out of the coop eggs, except I add a decent amount of salt to the water. I learned it here on BYC. My shells peel right off, every time. I have tried it from eggs directly from under the hen and into the pot, and that method does work like a charm.
Since it's getting warmer out I have just started refrigerating the eggs I'm going to sell. However, supply isn't keeping up with demand so I don't have time to keep 'em refrigerated for very long. The eggs we eat at home I haven't started refrigerating yet, but I can't say I won't when it's summer time!