@DavidSalo
I would say also to crack each individual egg into a teacup, so you don't lose all the eggs you already cracked by putting a bad one into them. (Lol, I make recipes with a lot of eggs)
@AlphaCentauri @DavidSalo I have never seen a bad egg. What do they look like?
@DavidSalo @Netherbury
I don't worry about the blood spots (fertilized egg, I think), but you want to see that there is an area of the white that is a gel, not digested by bacteria into a watery texture. And a really bad egg smells like sulfur.
@AlphaCentauri @DavidSalo @Netherbury Yeah, fertilized, eat it anyway.
Another possibility is...a chick. If you got them from a farm that had problems. Anyway if you're super curious, hold the eggs up in front of a light in a dim/dark room. Do it anyway, it's cool.
https://duckduckgo.com/?t=ffab&q=candling+eggs&atb=v315-1&iax=images&ia=images
/nosanitize