Which grade of egg has an air cell size of less than 1/8"?

The grade of egg that features an air cell size of less than 1/8" is known as Grade AA. In the grading of eggs, the air cell is an important indicator of freshness and overall quality. Grade AA eggs have firm whites and high, round yolks, contributing to their overall stability and appearance. The small size of the air cell implies that the egg is quite fresh, as the air cell tends to enlarge over time due to moisture loss and air infiltration.

Grade AA eggs are recognized for their superior quality, making them ideal for poaching or frying, where visual appearance and texture are essential. As eggs age, the air cell size increases, which is typically associated with lower grades. Therefore, the characteristic of having an air cell size of less than 1/8" distinctly qualifies it as Grade AA.