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I bought a tray of eggs recently. They aren't old, I have them in the fridge, and the date stamped on the egg says they are good for another month.

In two eggs that I cracked open today, there were dark green spots inside the shell (looked like mold maybe?), and floating around the egg white.

Any idea what that is? Is it a sign that the whole tray may be contaminated with something??

I only noticed the green on the shell after I mixed one of the eggs into a bread dough, and now I need to know if I should throw the dough out or not (it's a huge batch of dough).


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1 Answer 1

up vote 4 down vote accepted

According to http://www.eggsafety.org/consumers/consumer-faqs, black or green spots inside the egg are the result of bacterial or fungal contamination of the egg.

The use by date is only an estimate, so if your eggs are moldy, I'd bin them.

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sounds like mold... but i wonder if it will make me sick to eat bread baked with it. it was just one egg with about 5lbs of flour. it's a real waste to throw that all out... –  esther h Nov 8 '12 at 10:32
Some molds are harmless. Some can make you really sick. Some molds can kill you. Is it worth the risk of 5lbs of flour to find out if you'll still be around next year? –  Michael Karas Nov 8 '12 at 12:31
no, of course not. but perhaps someone would know if egg mold is the harmless type or not? –  esther h Nov 8 '12 at 12:53
maybe they didn't live to contribute to this site again. (bad joke - sorry!) But seriously, @estherh - barring any new insight to egg mold, I hope we hear that you threw away the dough and started again with fresh eggs! :-) –  Kristina Lopez Nov 8 '12 at 15:15

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