Have you ever seen a rainbow-like glow on your meat slices and wondered if it’s safe? This colorful effect is common and nothing to worry about.
The rainbow shine happens because light interacts with the meat’s muscle fibers, fat, and iron. When light hits thin slices cut across the grain, it bends and splits into different colors, similar to a rainbow. Moisture on the surface makes the colors more noticeable.
This effect is most often seen on beef but can also appear on pork, ham, bacon, and fish. According to the USDA, it’s a natural phenomenon and not a sign of contamination.
However, always check your meat for other signs of spoilage. If it smells bad, feels slimy, or shows strange colors like gray or green, it’s best not to eat it.
When buying meat, look for bright colors and intact packaging. Avoid meat with torn seals or air bubbles in vacuum packs.
So, the next time you see that rainbow shine, remember it’s just light reflecting off the meat’s surface. As long as the meat is fresh, it’s safe to cook and enjoy.
