Your nose is an even better tool than a calendar. Crack an egg into a clean bowl and take a gentle sniff. A fresh egg has a neutral, almost clean scent. A bad egg will hit you with a distinct, sulfuric smell that’s impossible to miss. Trust that instinct—evolution has hardwired it for a reason.
Also, look at the white and yolk. A fresh egg has a firm, thick white that doesn’t spread too much, and a yolk that sits up like a little golden sun. A weaker, watery white and a flatter yolk mean the egg is older, but it’s still safe for hard-boiling or scrambling for a frittata.
Fun fact: In many European countries, like France, eggs are often sold unrefrigerated on the counter. Their natural protective “bloom” stays intact because they aren't washed. In the U.S. and Japan, we wash them for safety, which removes that bloom, so refrigeration is a must. Cultural habits shape how we treat our eggs!
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