Idaho Administrative Code
Title IDAPA 02 - Agriculture, Department of
Rule 02.02.11 - RULES GOVERNING EGGS AND EGG PRODUCTS
Section 02.02.11.150 - TERMS DESCRIPTIVE OF THE WHITE

01. Clear. A white that is free from discolorations or from any foreign bodies floating in it. (Prominent chalazas should not be confused with foreign bodies such as spots or blood clots).

02. Firm (AA Quality). A white that is sufficiently thick or viscous to prevent the yolk outline from being more than slightly defined or indistinctly indicated when the egg is twirled. With respect to a broken-out egg, a firm white has a Haugh unit value of seventy-two (72) or higher when measured at a temperature between forty-five (45) Degrees F and sixty (60) Degrees F.

03. Reasonably Firm (A Quality). A white that is somewhat less thick or viscous than a firm white. A reasonably firm white permits the yolk to approach the shell more closely that results in a fairly well defined yolk outline when the egg is twirled. With respect to a broken-out egg, a reasonably firm white has a Haugh unit value of sixty (60) to seventy-two (72) when measured at a temperature between forty-five (45) Degrees F and sixty (60) Degrees F.

04. Weak and Watery (B Quality). A white that is weak, thin and generally lacking in viscosity. A weak and watery white permits the yolk to approach the shell closely, thus causing the yolk outline to appear plainly visible and dark when the egg is twirled. With respect to a broken-out egg, a weak and watery white has a Haugh unit value lower than sixty (60) when measured at a temperature between forty-five (45) Degrees F and sixty (60) Degrees F.

05. Blood Spots or Meat Spots. Small blood spots or meat spots (aggregating not more than one-eighth (1/8) inch in diameter), may be classified as "B" quality. If larger, or showing diffusion of blood into the white surrounding a blood spot, the egg must be classified as Loss. Blood spots must not be due to germ development. They may be on the yolk or in the white. Meat spots may be blood spots that have lost their characteristic red color or tissue from the reproductive organs.

06. Bloody White. An egg that has blood diffused through the white. Eggs with bloody whites are classed as Loss. Eggs with blood spots that show a slight diffusion into the white around the localized spot are not to be classified as bloody whites.