| Quality factor | AAA | A | B |
|---|---|---|---|
| Air cell | 1/8 inch (3.2 mm) Unlimited movement and free or bubbly | 3/16 inch (4.8 mm) Unlimited movement and free or bubbly | Over 3/16 inch Unlimited movement and free or bubbly |
| Yolk | Outline slightly defined Practically free from defects | Outline fairly well defined Practically free from defects | Outline plainly visible Enlarge and flattened, no blood spots |
| Albumen | Clear, firm (with respect to a broken out egg, Haugh unit value of ≥76, measured at 7.2°C and 15.6°C) | Clear, reasonably firm (with respect to a broken out egg, Haugh unit value of 60 up to, measured at 7.2°C and 15.6°C) | Weak and watery (with respect to a broken out egg, Haugh unit value lower than 60, measured at 7.2°C and 15.6°C) Blood and meat spots |