Grab a bowl of cold water. Gently lower your suspicious egg in. Does it sink like a rock? It’s super fresh. Does it stand on its tip? It’s a bit older, but probably still good to go.
Here’s the kicker: if your egg floats like a little submersible, toss it. Why does this work? Eggs have a tiny air cell inside. Over time, moisture escapes through the shell, making the air cell bigger. A floating egg means there’s too much air, and bacteria might have moved in.
It’s kind of like a battery indicator. When the egg is new, it’s heavy and sinks. When it’s old, it’s light and bobs. Simple physics, big payoff.
