The test involves simply placing the egg in water in a jug or large bowl. If you find the egg … Another test for egg freshness is the sound test, where you hold an egg near your ear and shake it. Give the egg float test a try—here are three possible outcomes: The egg sinks and falls to its side. Fill a large bowl with cold water. If it sinks to the bottom and lies on its side, it’s still good! If you hear a sloshing sound, the egg may have gone bad. Wondering how to test an egg to see if it is fertile? Also, the air pocket in the egg becomes bigger, allowing more space for the egg white to move around. Finally, if it floats it’s not good and should be discarded. A fertilized egg that is fresh is healthy and can be safely consumed as long as it passes the methods of testing for freshness above. Some people won’t eat a fertilized egg as a personal choice but it is completely up to you. The Floating Test. The egg … Test the freshness of an egg by putting it in a bowl of cold water. To test your eggs for freshness, you can use the float test or smell and examine a cracked egg. Now go make Ree’s Cowboy Quiche! “You can check whether an egg is in date if it hasn’t got a stamp on it, by putting it in some water,” Martin explained. Read How to Build a Candler so you can test your eggs. Simply plop the egg into a glass of water. Photograph: iStock . To test the freshness of an egg using water you’ll need a bowl or a glass. How to Test an Egg’s Freshness. Get cracking—your egg is still okay to eat, but you should use it relatively quickly. The water test is one of the easiest ways to test eggs for freshness. Hooray, you have a fresh egg! If it floats to the surface, it’s BAD. The Sloshing Test. The egg sinks, but stands upright at the bottom. As time passes, the egg white and yolk begin to dry out and shrink, as moisture and carbon dioxide escape through the shell. Place the egg in the water and observe. If the egg sinks it’s very fresh, if it stands up it’s not fresh but it’s okay to eat. Fill it up with cold water and put your egg in there. If it bobs slightly after reaching the bottom or balances on its smaller tip, it’s old but good! If the egg is fresh, you can use it however you want.