SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/chick-egg-bloom

What is the natural "bloom" on a freshly laid egg?

A coating that seals the shell's tiny pores, and washing removes it.

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  1. A sign the egg is spoiled
  2. A coating that seals the shell's pores ✔
  3. Dust from the nesting box

Why: The bloom, or cuticle, helps keep germs out. Brushing, washing and rough handling can damage or remove it, while grocery store eggs have already been washed.

Huh, didn't know that: Commercial washing removes the cuticle but also reduces debris and manure on the shell.

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Why did the egg hide? It was a little chicken.
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References

Answer: A coating that seals the shell's pores. The bloom, or cuticle, helps keep germs out. Brushing, washing and rough handling can damage or remove it, while grocery store eggs have already been washed.

  1. How to Safely Handle and Store Eggs from Your Home Flock, Penn State Extension extension.psu.edu/how-to-safely-handle-and-store-eggs-from-your-home-flock
    an outer layer that provides protection by sealing the natural pores in the eggshell.
    Checked 2026-10-11.
  2. How to Safely Handle and Store Eggs from Your Home Flock, Penn State Extension extension.psu.edu/how-to-safely-handle-and-store-eggs-from-your-home-flock
    This removes the protective cuticle but decreases the risk of food-borne illness.
    Checked 2026-10-11.

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