Close-up of sliced deli ham showing rainbow-colored iridescent reflections caused by light interacting with the meat’s surface.

Rainbow Shimmer on Deli Ham! How to Tell If Its Safe or Spoiled

That rainbow shimmer on sliced ham may look alarming, but in most cases it’s completely harmless. The effect is called iridescence, and it happens because…

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That White Strand in Your Egg Isn’t a Flaw — Here’s What It Means

You crack an egg into a bowl, ready to cook, and notice a thin white strand attached to the yolk. At first, it may look…

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