How to Tell an Egg's Freshness?

HOW TO TELL THE FRESHNESS OF AN EGG

1 Day Old Egg

When a 1-day-old egg is cracked, the yolk shape is round and regular. Around it, there is a ring of transparent egg white, and around that, a thinner ring of egg white. When placed in water, the egg does not float; it sinks to the bottom.

1 Week Old Egg

The yolk is still regular. The transparent egg white around it spreads a bit more but is still round in shape. Since the air pocket inside has grown, when placed in water, the blunt end of the egg tilts upwards.

2-3 Week Old Egg

The yolk loses its round shape and begins to flatten slightly. The surrounding white becomes watery and spreads when cracked. Such an egg should be cooked very well before eating. When placed in water, the blunt end rises toward the water's surface.