Eggs of different sizes may not be packed together in the same container and they should be displayed separately when sold loose. The following weights are used:
The egg white should be thick and the egg should have a round, well centred yolk. The air cell should be small, to a maximum depth of 6 mm, and moves less than 6 mm in any direction when the egg is tilted in a vertical direction.
The egg should be free from meat spots and the shell should be clean, not cracked and strong. The eggs whites should have a huagh value of at least 55 units.
(This measurement looks at the protein quality of an egg, based on the height of its egg white. Fresh and higher quality eggs have thicker whites than poorer quality eggs.)
Very few of these eggs are sold at retail stores. The yolk is slightly flattened and the white thinner than the whites of eggs qualifying for Grade 1. The air cell has a maximum depth of 9 mm and moves less than 12 mm in any direction when the egg is tilted.
The shell is not cracked, may have a rough texture and may be slightly soiled or stained. The egg whites should have a haugh value of at least 35 units.
Egg packaging should not give off any taste or odour. It should be strong, unbroken and close properly to protect the eggs during normal handling and transportation.
It should not absorb excessive moisture during cooling and it should be cleaned properly and previous labels should be removed, if the container is being recycled for use. Suitable packaging includes simple baskets for short distance transportation and egg collection, filler trays and polystyrene packages.
Free-range eggs, barn eggs and pasteurised eggs need to comply with stipulated regulations to be labelled as such. The following information should be on the label: