Have you ever opened a package of deli ham, roast beef, or smoked turkey and noticed a strange rainbow shimmer on the surface?
At first glance, it can be a little alarming. The colorful sheen often looks like an oil slick on water or the inside of a pearl shell, leading many people to wonder:
“Is this meat spoiled?”
“Did manufacturers add some kind of chemical?”
“Should I throw it away?”
The good news is that the rainbow effect is completely natural—and in most cases, it’s actually a sign of
