Why Does Your Egg Float in Water? Understanding the Science Behind It 🥚💧

Have you ever cracked an egg into a glass of water and noticed it floats instead of sinking? It might seem strange or even alarming, but this phenomenon has a simple explanation rooted in science, egg freshness, and density. Understanding why eggs float can help you identify their quality and safety, and it’s actually a handy kitchen trick.

1. Fresh Eggs Sink, Old Eggs Float

The most common reason an egg floats is age. Eggs are porous, meaning air gradually seeps inside over time:

• When an egg is freshly laid, it contains very little air and sinks flat to the bottom of a bowl or glass of water.

• As it ages, the air pocket inside the egg grows larger, increasing buoyancy.

• Eventually, the egg may tilt, stand upright, or even float completely.

Rule of thumb: If an egg floats in water, it’s generally a sign that it’s older and should be checked carefully before consumption.