Color alone is not a reliable indicator of spoilage. You must conduct a full sensory assessment. If you see purple blotches AND encounter any of the following, discard the chicken immediately:
- The Smell Test: A definitive, sour, sulfuric, or ammonia-like odor. Fresh chicken has a mild, almost neutral smell. Your nose is your best tool.
- The Touch Test: A thick, sticky, or slimy film on the surface, even after rinsing.
- The Visual Test: Greyish overall color (not purple spots), significant green tinges, or visible mold.
- The Thaw Test: If the chicken was thawed in the refrigerator for more than 2 days, or at room temperature for over 2 hours.
