How can you tell if an egg is fresh?

A fresh egg placed in a bowl of water will sink to the bottom, but an egg that is no longer fresh will float to the surface. This phenomenon occurs as moisture evaporates and air expands in the egg’s inner chamber over time. Even if an egg is less fresh, you may use it. However, always make sure that it looks and smells normal (odourless), and use it in baking or other dishes where it will be thoroughly cooked. Throw away any eggs that smell rotten or bad upon cracking the shell.