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

The appearance of a rainbow sheen on deli ham is generally considered normal and safe. This is particularly true if the ham has been properly stored and is within its expiration date. The iridescence is a natural property of the meat and does not affect its taste or nutritional value.
As long as the ham does not exhibit any signs of spoilage, such as an off smell or slimy texture, the iridescent surface should not be a cause for concern. Many consumers find