Throw Your Eggs Away Immediately If You Notice This

There are a lot of normal variations in egg appearance, from the color and thickness of the shell to the brightness and consistency of the yolk and white inside. Most of these differences are nothing to worry about and are caused by outside factors, like the type of chicken the egg came from, what the hen was fed, the temperature where it was laid, and so on, per NC State.

However, egg whites that are pink or pearly white in appearance should be trashed immediately, according to the U.S. Department of Agriculture (USDA). This is because egg whites that are pearly white or pink reveal spoilage due to pretty gross bacteria. Called Pseudomonas bacteria, this generally happens when eggs are exposed to excrement and/or mud, says Science Direct. Pseudomonas spoilage, as it's known among egg experts, is the most common type of spoilage for this foodstuff.

Don't fret if a yolk is bright yellow/orange, however. This just means that the hen in question enjoyed a diet rich in bright plant pigments, the USDA notes. Basically, you can fry it, boil it, or serve it with toast, but nothing is going to make an egg infected with Pseudomonas bacteria edible. So don't even try.