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The discoloration and drying out of
the skin of poultry carcasses during storage is called "freezer burn."
This defect lowers the quality either in the case of moderate or of severe
freezer burn. The skin of frozen poultry often shows a condition known as "box burn." This shows up as a white area where the skin has come in contact with the lining of the box. The outer cuticle is the only part affected. This condition should not be confused with that of freezer burn. In grading, "box burns" would be included under discolorations. In addition to "freezer burn," there are other freezing defects of significance in establishing the grade of consumer-packaged poultry, parts, not exceed one-half of the total aggregate area of permitted discoloration. The aggregate area of all discolorations for a carcass, or a part there-from, shall not exceed the area of a circle of the diameter as specified below.
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