Keeping quality requirements
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
Keeping quality samples taken from the packaging line shall be held at 45 °F. for 10 days. At the end of the 10 day period the samples shall possess a satisfactory flavor and appearance, and shall be free from bitter, sour, fruity, or other objectionable tastes and odors. The surface shall not be discolored, translucent, slimy or show any other objectionable condition.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.