Cook shell eggs until both the yolk and white are firm when maximum safety is the priority, especially when serving people in higher-risk groups. Scrambled eggs should not remain runny.
Casseroles, quiches, and other mixed dishes containing eggs should reach an internal temperature of 160°F, or approximately 71°C. A food thermometer provides the most reliable way to check the temperature.
Wash hands, utensils, cutting boards, bowls, and work surfaces with hot, soapy water after they come into contact with raw eggs.
Do not reuse a plate, spoon, whisk, or other utensil that held raw egg unless it has been properly washed. Keep raw eggs away from fruit, bread, salads, cooked food, and other items that will be eaten without further heating.
For recipes traditionally made with raw or undercooked eggs, use pasteurized shell eggs or pasteurized egg products.
When Should an Egg Be Discarded?
Discard eggs with cracked or badly damaged shells. Do not use an egg when the shell is leaking or appears heavily contaminated.
After cracking an egg into a separate clean bowl, throw it away if it produces a distinctly foul or rotten odor. Cracking eggs one at a time before adding them to a larger recipe also prevents one spoiled egg from ruining the entire dish.
However, do not discard an egg simply because its shell is green, blue-green, or olive. That color may be completely normal for the breed.
The warning signs that matter are damaged packaging, poor refrigeration, cracks, contamination, unusual odor, and unsafe handling—not the shell’s natural color.
The Bottom Line
The statement that “eating green-shelled chicken eggs can cause food poisoning” is technically possible but incomplete and potentially misleading.
Any chicken egg can carry foodborne bacteria when it is contaminated or mishandled. Scientific evidence does not support the idea that the natural green shell pigment itself makes an egg toxic.
Green-shelled eggs are generally as safe to eat as other chicken eggs when they come from a reliable source, remain properly refrigerated, have intact shells, and are cooked and handled correctly.
Their color is a genetic and biochemical feature—not a medical warning label.
Consumers should focus less on whether an egg is green, brown, or white and more on the factors that genuinely protect health: cleanliness, refrigeration, pasteurization when needed, thorough cooking, and the prevention of cross-contamination.
