Pulled deli ham from the fridge and noticed a rainbow-like shine on the slices. Is that normal?

4. Visual Red Flags That Signal Ham Has Gone Bad
While the iridescent shine is not a sign of spoilage, there are other visual indicators that can alert you to ham that has gone bad. Discoloration, such as a green, gray, or brownish tint, is a strong signal that the meat is no longer safe to eat. Mold growth, which can appear as fuzzy patches or spots, is another clear indication of spoilage.
Additionally, if the surface of the ham appears excessively shiny or slimy, it may be a sign of bacterial growth. In such cases, it is best to err on the side of caution and discard the meat.
5. The Smell and Touch Tests You Should Always Do
In addition to visual cues, your senses of smell and touch are valuable tools in determining the freshness of deli ham. Fresh ham should have a mild, slightly sweet aroma. If the ham emits a sour, ammonia-like, or otherwise unpleasant odor, it is likely spoiled.
Touch is another reliable test. The surface of the ham should feel dry or slightly moist, but not sticky or slimy. A slimy texture is a classic sign of bacterial growth and indicates that the meat should be discarded.

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