Your nose is actually a better tool than any kitchen gadget. Crack the egg into a clean bowl—don’t just sniff the shell! A fresh egg smells like, well, nothing. An off egg smells like sulfur or, as some say, “farty.” You can’t miss it.
Seriously, trust your nose. Your ancestors survived by recognizing smells like this. That rotten-egg odor is hydrogen sulfide gas, a chemical signal that the egg has gone bad. It’s basically your biology saying, “Avoid this, friend.”
If you get even a whiff of that weird, funky scent, bin it immediately. You don’t need to taste-test anything. One sniff is enough to save your breakfast—and your stomach.
How Do I Know If My Egg Is Released at Jack Radcliffe blog
