What stains eggs brown?
The brown coloration of egg shells comes from protoporphyrin, which is a porphyrin. Porphyrins are pigments that occur naturally in animals, plants and several microorganisms. This pigment is deposited on the eggshell during its formation and is responsible for the characteristic brown shade.
Egg Recipes
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Egg Recipes
- Bread Machine Recipes
- Bread Recipes
- Cereal Recipes
- Cold Breakfast Recipes
- Egg Recipes
- Hot Breakfast Recipes
- Omelet Recipes
- Pancake Recipes


