How to tell if eggs are rotten Over the past couple of weeks our local supermarket has been selling eggs very cheaply.  (large eggs for half the price of medium eggs).  So we've been eating a lot of eggs, not a problem, but I still have a few dozen left and need the counter space.  I am well aware of the drop them in water and see if they float technique - here and here.  But I have been finding that a few have slipped through the net. My question is: Are there any other fool proof methods to telling if an egg has gone off or not?

Please note that the first link is a site that I own, it's just that I wrote an egg page a long time ago.
There are only two methods I found fool proof:


If in doubt, assume it gone bad.
Break the shell, open it, and see &amp; smell. Pour content into a glass, not directly on the pan or whatever. That way, if it's good you can still add it, and if it's bad, your dish is not ruined.


I prefer method 1. if I can afford it. On the trail, or in a camp in woods, or when I was short on money, I used 2.