Salmonella Risks in Raw Eggs (Safety Guide)

Raw or undercooked eggs can carry Salmonella, even when their shells look clean and uncracked. To lower the risk, keep eggs cold, prevent raw egg from touching ready-to-eat food, and cook egg dishes to 160°F (71°C). For recipes served raw or lightly cooked, choose commercially pasteurized eggs or egg products.

A clean-looking egg can still be a tiny kitchen mystery: you cannot see Salmonella, smell it, or taste it. That is why safe handling matters more than judging an egg by its appearance. I focus on a few reliable controls: cold storage, clean hands and tools, pasteurized eggs for uncooked recipes, and a thermometer for cooked dishes.

Egg Selection, Refrigeration & Preparation

Salmonella is a germ that can cause foodborne illness. It may be present inside an egg or on its shell, so clean appearance is not proof of safety. Keep shell eggs at 41°F (5°C) or below, and use clean handling to prevent germs from spreading to other foods.

Choose refrigerated eggs with clean, uncracked shells. At home, put them in the refrigerator promptly and keep them cold until you are ready to cook. Do not leave eggs on the counter to warm up for long periods. If a shell is cracked or dirty, discard the egg rather than trying to wash it clean.

Before preparation, wash your hands with soap and water. Clean food-contact surfaces and utensils, then sanitize them when appropriate. Keep raw eggs and their equipment apart from foods that will be eaten without further cooking, such as salad, cut fruit, or cooked food ready to serve.

Crack eggs into a separate clean bowl before adding them to a shared mixture. This makes it easier to remove shell pieces and helps prevent a bad egg or shell contact from affecting the whole batch. Avoid letting the contents of a raw egg touch cooked food or clean serving tools.

Key next step: Keep eggs cold, and set up a separate clean bowl and utensils before cracking.

Safe Cooking Temperatures and Raw-Egg Alternatives

Cooking means heating food enough to reduce harmful germs. For home cooking, use 160°F (71°C) as the target for egg dishes and foods containing eggs. For recipes served raw or lightly cooked, use commercially pasteurized shell eggs or pasteurized egg products instead of ordinary raw eggs.

Cook scrambled eggs until firm, and cook casseroles, quiches, and other egg dishes to 160°F (71°C). A clean food thermometer gives a more reliable check than color or surface heat. Put the thermometer into the center of a casserole or other thick dish, without touching the pan.

Large or dense dishes can heat unevenly. The top may look hot while the middle stays cooler. Check the center and more than one spot when the dish is large, then clean the thermometer before using it again. Do not taste raw batter or mixtures containing ordinary raw eggs.

For Caesar dressing, mayonnaise, mousse, or another recipe that will not be fully cooked, use a product labeled pasteurized. Pasteurization is a controlled heat treatment that lowers the risk from harmful germs. Ordinary washing, freezing, lemon juice, or vinegar does not reliably kill Salmonella in raw eggs.

Some food-service rules allow intact shell eggs prepared for immediate service to reach 145°F (63°C) for 15 seconds. That is a specific U.S. Food Code standard for food establishments, not the general home target in this guide. For home egg dishes, use 160°F (71°C).

Key next step: When a recipe stays raw or lightly cooked, swap in pasteurized eggs; when it is cooked, verify the temperature.

Cleanup, Leftover Storage & Cross-Contamination Control

Cross-contamination occurs when germs move from raw food, hands, or utensils onto food that will not be cooked again. Wash and sanitize tools and surfaces after raw egg contact. Refrigerate egg dishes promptly at 41°F (5°C) or below, and discard food left out too long.

Wash hands after handling shell eggs or raw egg mixtures, and before touching ready-to-eat foods. Wash bowls, forks, counters, and cutting boards with hot, soapy water. Sanitize food-contact surfaces as appropriate, following the product label. Do not wipe raw egg onto a towel that will later touch clean dishes or food.

Refrigerate leftovers in shallow containers so they cool more quickly. Keep them at 41°F (5°C) or below. Perishable egg foods should not sit at room temperature for more than two hours total. If the room or outdoor temperature is above 90°F (32°C), use a one-hour limit.

These are total time limits, not a fresh allowance each time food is moved. If an egg dish has been out beyond the limit, discard it. Smell and appearance cannot tell you whether it is safe.

Key next step: Refrigerate leftovers promptly and clean all surfaces and tools that touched raw egg.

Serving Safely: Timing, Temperature & Guest Communication

Safe serving means keeping egg dishes cold or hot as needed and limiting time at room temperature. Tell guests when a dish contains raw or lightly cooked egg, and offer a pasteurized version or a fully cooked alternative. Take extra care when serving people at higher risk of severe illness.

A dish can be safe when it leaves the kitchen and become unsafe if it stays out too long. Keep cold egg dishes refrigerated until serving, and return leftovers to the refrigerator within the two-hour limit, or one hour when temperatures exceed 90°F (32°C). If you cannot track the time, do not guess that the dish is still safe.

People at higher risk of serious Salmonella illness include children under five, adults 65 and older, and people with weakened immune systems. For them, avoid serving ordinary raw or lightly cooked eggs. A clear note such as “made with pasteurized eggs” helps guests make an informed choice.

Key next step: Plan serving time before food goes on the table, especially in warm rooms or outdoor settings.

What to Do After a Possible Exposure

Eating raw egg does not mean illness is certain, but it can expose you to Salmonella. Watch for diarrhea, fever, and stomach cramps, and seek medical advice for severe symptoms or if the person is at higher risk. Do not use leftover food that has exceeded safe time limits.

Salmonella symptoms often begin within six hours to six days after infection, according to the CDC. Many people recover without specific treatment, but illness can be more serious for young children, older adults, and people with weakened immune systems. Contact a health professional for bloody diarrhea, signs of dehydration, a high fever, or symptoms that concern you.

Illustrative scenario: Imagine a family finds that a homemade mousse contains ordinary raw eggs after it has been served. I would advise them not to serve more, to discard the remaining mousse, and to note when it was eaten. They should watch for symptoms and contact a health professional if someone is at higher risk or becomes seriously ill. This example is not a diagnosis.

Key next step: Stop serving the food, discard unsafe leftovers, and seek medical advice when symptoms are severe or risk is elevated.

Conclusion and FAQ

The most dependable safeguards are simple: refrigerate shell eggs at 41°F (5°C) or below, keep raw egg away from ready-to-eat food, cook egg dishes to 160°F (71°C), and use pasteurized eggs in uncooked recipes. When in doubt about time at room temperature or safe handling, discard the food rather than taste it.

Can Salmonella be inside an egg?
Yes. Salmonella may be inside an egg or on its shell, so a clean-looking shell does not prove the egg is safe.

Are raw eggs safe if the shell is uncracked?
An uncracked shell does not guarantee that an egg is free of Salmonella. Use pasteurized eggs in recipes served raw or lightly cooked.

Does washing an egg remove Salmonella?
Washing is not a reliable way to eliminate Salmonella. Do not rely on washing, freezing, lemon juice, or vinegar to make ordinary raw eggs safe.

What temperature should egg dishes reach?
Cook egg dishes and foods containing eggs to 160°F (71°C). Check the center of thick dishes with a clean food thermometer.

Can I use raw eggs in homemade mayonnaise or Caesar dressing?
Use commercially pasteurized shell eggs or pasteurized egg products for uncooked dressings and similar recipes.

How long can egg dishes stay unrefrigerated?
No more than two hours at room temperature, or one hour when the temperature is above 90°F (32°C). These are total time limits.

What refrigerator temperature should I use for eggs?
Keep shell eggs and perishable egg dishes at 41°F (5°C) or below.

Is 145°F (63°C) safe for cooking eggs at home?
The 145°F (63°C) for 15 seconds standard applies to intact shell eggs prepared for immediate service under U.S. food-service rules. For home egg dishes, use 160°F (71°C).

What are common Salmonella symptoms?
Common symptoms include diarrhea, fever, and stomach cramps. Symptoms often start six hours to six days after infection.

Who should avoid raw or lightly cooked eggs?
Everyone should avoid ordinary raw eggs, but extra care is important for children under five, adults 65 and older, and people with weakened immune systems. Choose pasteurized eggs or fully cooked dishes.

(This article was written by one of our staff writers, Richard K. Ellison. Visit our Meet the Team page.)