COOKING WITH EGGS
What is an adequate temperature to cook an egg?
Egg white coagulates between 144 and 149°F, egg yolk coagulates between 149 and 158°F and whole eggs between 144 and 158°F. Plain whole eggs without added ingredients are pasteurized but not cooked by bringing them to 140°F and maintaining that temperature for 3 and 1/2 minutes. According to the FDA Food Code, eggs for immediate consumption can be cooked to 145°F for 15 seconds.
If the eggs are to be used in a recipe with other food items, dilute the eggs with liquid or other ingredients, such as milk, or sugar (at least ¼ cup liquid or sugar per egg as in custard) and cook the egg mixture to 160°F, which will destroy harmful bacteria in a few seconds. Adequate cooking brings eggs and other foods to a temperature high enough to destroy bacteria that might be present.
EGG SAFETY AND APPEARANCE
How safe are eggs?
The risk of getting a foodborne illness from eggs is very low. However, the nutrients that make eggs a high-quality food for humans are also a good growth medium for bacteria. In addition to food, bacteria also need moisture, a favorable temperature and time in order to multiply and increase the risk of illness. In the rare event that an egg contains bacteria, you can reduce the risk by proper chilling and eliminate it by proper cooking. When you handle eggs with care, they pose no greater food-safety risk than any other perishable food.
The inside of an egg was once considered almost sterile. But, over recent years, the bacterium Salmonella enteritidis (Se) has been found inside a small number of eggs. Scientists estimate that, on average across the U.S., only 1 of every 20,000 eggs might contain the bacteria. So, the likelihood that an egg might contain Se is extremely small – 0.005% (five one-thousandths of one percent). At this rate, if you’re an average consumer, you might encounter a contaminated egg once every 84 years.
Other types of microorganisms could be deposited along with dirt on the outside of an egg. In the U.S., eggshells are washed and sanitized to remove possible hazards. You can further protect yourself and your family by discarding eggs that are unclean, cracked, broken or leaking and making sure you and your family members use good hygiene practices, including properly washing your hands and keeping them clean.