Eggshells are porous, allowing air to enter over time. Fresh eggs have less air inside, making them denser and causing them to sink. As eggs age, more air enters, increasing buoyancy and making them float.
The Sniff Test
Your nose can be a good judge of an egg’s condition:
Crack the Egg Open: Crack the egg into a clean bowl.
Smell It: Fresh eggs have a neutral odor, while spoiled eggs emit a distinctly unpleasant, sulfur-like smell.
Note:
Always wash your hands and the surrounding area thoroughly after handling raw eggs to prevent contamination.
The Shake Test
The shake test is another quick method:
Hold the Egg Near Your Ear: Gently shake the egg.
Fresh Egg: Little to no movement or sound inside.
Spoiled Egg: Sloshing sound, indicating a watery interior.
Why It Works:
As eggs age, the yolk and white break down, becoming more liquid and less cohesive, leading to the sloshing sound.
The Candling Test
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