If you are uncertain about how fresh your eggs are you can do this simple test - put them in water, the more it floats the older the egg! Egg flotation method of Kentish Plover by cleanylee, via Flickr
Needed this tonight. Tell if an Egg is Bad--Place egg in bowl of cold water 2 x deeper than egg. Fresh sink to the bottom on their sides. Slightly older lie on the bottom but bob slightly. If egg balances on its small end, w large tip up, it’s appx 3 wks old. Eggs that float on the surface shouldn't be eaten. - I always wondered how to know if an egg was still good or not.
How to tell if an Egg is Fresh ~ If the egg lies on its side on the bottom it is very fresh, If the egg stands up and bobs on the bottom it isn’t quite as fresh, If the egg floats on the surface, discard! Here is a link to the show The Doctors where they talk about this: http://www.thedoctorstv.com/videolib/init/563