It’s amazing the interesting facts you can learn at the dentist office. While in the waiting room, I was thumbing through a health book when I ran across this tip for how to tell if eggs are fresh.
Apparently fresh eggs will sink to the bottom of a glass or a bowl of water. Older eggs will float in the water. Eggs are slightly porous and as they age, more air enters into the egg, thus causing them to float.
Also, if a boiled egg’s yolk is closer to the edge, it’s an older egg because apparently the yolk drops as the egg ages. Everything sags with age I guess.
More about Eggs
Egg cartons should have the date that the eggs were packed. It’s a Julian date where 001 represents January 1. Eggs are good for about a month and a half after that date. The United States Department of Agriculture(USDA) requires that any carton date be no more than 30 days after the packing date.
One thing I do with older eggs is to give them a good smell before using them. I first will crack them open and then give it a good whiff. If there is no rotten smell, then the eggs are OK. Not my favorite method but sometimes I need an egg and am in a bind. Better to take a chance to smell a rotten egg than dump it into whatever I am making.