Eggs with blood spot
Is it okay to use eggs with a blood spot in general and in baking? I usually always throw them out, but I just tossed six eggs, so I'm beginning to wonder
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Is it okay to use eggs with a blood spot in general and in baking? I usually always throw them out, but I just tossed six eggs, so I'm beginning to wonder
22 Comments
ChefoOno, the USDA is as dirty as the FDA.
P.S. ChefOno, all the eggs I have bought are USDA Grade A, and as I mentioned, half of them frequently had blood spots. So I'm not sure how the USDA can make those claims.
The USDA doesn't assign the grades, the packer does. The USDA performs spot-checks along the entire supply chain including retail stores to make sure the regulations are met. The guide I referenced explains in detail but there are allowances made for certain variables, one of which is the difficulty of detecting small blood spots though brown shells. What those tolerances are, I don't know. That's beyond the limits of my knowledge.
Hmmm… I'll see your NPR and raise you Perdue.
The idea that the color of a chicken's feathers relates to the color of its eggs doesn't hold up. The chicken's earlobes are a better indicator, but even that isn't an absolute. Genetics is a trickster.
http://www.extension.purdue.edu/extmedia/as/as-518.pdf
As for the prevalence of white eggs in this country, it's true that most people prefer a "clean" white egg but that's not the reason there're the norm. Cost of feed is (or at least was). Long story short, white egg layers are less expensive to feed.
Not all eggs are USDA graded -- look for the USDA shield on the carton.
USDA grade A eggs should not have blood spots but, as rachelib pointed out, brown eggs are harder to candle so rejects sometimes get through. The USDA quality program take into account such issues as well as a variance in weight per egg and weight per carton. But they shouldn't vary by a great deal.
I can tell you *exactly* why you'll find more brown organic / free range / cage-free eggs. Because people believe (wrongly) that they're more healthful or more natural.
Once you beat the eggs, the spots disappear.
Voted the Best Reply!
If the carton had the USDA shield, all those eggs should have been sold as grade B. But, as the handbook notes, defects in brown eggs are more difficult to detect so that could be a factor. I doubt the organic and free range classifications have anything to do with it but the species of chicken could. The handbook points out blood spots can be a genetic trait.
In any case, if the spots are small, the manual says they're okay to use.
I have zero experience with organic and free range products so maybe someone else has had similar issues. I can't remember the last time I've seen a blood spot on a conventional egg.
What is it with egg issues lately?
Satisfy my curiosity please. Were these eggs USDA graded? Were they white or brown shelled?
Small blood spots (not more than 1/8") are classified as "B" grade. Larger spots, diffusion of blood into the albumen, blood due to germ development, lines or rings are classified as inedible.
Somewhere around page 24:
http://www.ams.usda.gov/AMSv1.0/getfile?dDocName=STELDEV3004502