How to tell if eggs are rotten
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.