Pulled deli ham from the fridge and noticed a rainbow-like shine on the slices. Is that normal?
Yes—a rainbow-like or iridescent shine on sliced deli ham can be normal and doesn’t necessarily mean the ham is spoiled. Why does it look rainbow-colored? When ham is sliced, the muscle fibers can reflect light in different directions, producing a metallic, rainbow-like sheen. This is called iridescence and can occur even when the meat is …









