What are the classification of chicken eggs?

Weight Classification:

* Jumbo: Over 30 ounces per dozen

* Extra Large: 27-30 ounces per dozen

* Large: 24-27 ounces per dozen

* Medium: 21-24 ounces per dozen

* Small: 18-21 ounces per dozen

* Peewee: Under 18 ounces per dozen

Size Classification:

* Extra Large: 2 1/4" to 2 5/8" in diameter

* Large: 2" to 2 1/4" in diameter

* Medium: 1 3/4" to 2" in diameter

* Small: 1 1/2" to 1 3/4" in diameter

Color Classification:

* White: Most common in the US. Laid by white feathered breeds like Leghorns and White Rocks.

* Brown: Laid by brown feathered breeds like Rhode Island Reds, Ameraucanas, and Plymouth Rocks.

* Blue: Laid by Araucana and Ameraucana breeds.

* Green: Laid by Olive Egger and Easter Egger breeds (often a bluish-green shade).

* Pink: Laid by some Ameraucana and Araucana breeds (though it's more of a pale pinkish-brown).

Note:

* The size of an egg can vary even within a single breed.

* The weight classification is the most commonly used system for commercial eggs in the US.

* Color is a matter of preference and does not indicate the nutritional content of the egg.

Additional Notes:

* There is no official classification for the quality of eggs. However, eggs are graded by the USDA based on factors like air cell size, shell condition, and yolk appearance.

* Free-range, organic, and pasture-raised are not classifications but refer to the conditions in which the hens are raised.

* Specialty eggs can be found in some markets, including eggs from heritage breeds, duck eggs, goose eggs, and quail eggs.