I am new to having chickens. I have 12 grown hens and so far have not boiled thier eggs. The main reason is that in some of the eggs there is a bit of floating "schmutz" or somthing I can't identify anyway. I just pick it out and use the egg as normal. Does candleing expose the hidden "goodie" in the egg? I don't want to bite down on a boiled and and find a surprise. What are these little floaties anyway?