A boiled egg can stay out of the refrigerator for up to 2 hours. After that time, it should be refrigerated or reheated before serving. A cooked or boiled egg can remain in the refrigerator for up to a week.
To make hard-boiled eggs, put eggs in a single layer in a large, cold pan and cover with cold water that reaches 1 inch above the eggs. Bring the water to a boil. Remove the pan from heat, cover and let the eggs sit for 12 minutes.
The total time needed to boil eggs is between 20 and30 minutes. Hard-boiled eggs require 12 minutes of cooking time after the water begins to boil.
Hard-boiling an egg doesn't require boiling it for any length of time. However, it should sit in hot water for nine to 15 minutes after the water comes to a boil and is removed from the heat.
Martha Stewart and Simply Recipes recommend 12 minutes for perfect hard boiled eggs. Arrange 12 large eggs in a single layer and add cool water measuring about an inch above the eggs. Heat just to boiling, cover and set aside for 12 minutes.
Using a timer to track cooking time is the best way to ensure that hard-boiled eggs are done. Hard-boil eggs can be cooked using multiple techniques, but all techniques lead to a cooking time of about 10 to 12 minutes in a pot of boiling water.
Perfect hard boiled eggs are made by bringing water to boil in a large pot, lowering the eggs into the water and boiling them for around 30 seconds. Then, the heat should be reduced until the water is barely simmering, and the eggs should continue cooking for 11 minutes.
Hard-boiled eggs take approximately 20 minutes to cook. It is not advisable to boil eggs in a microwave, but if the eggs are covered completely with water, it is possible to do so.
To make a hard-boiled egg, the American Egg Board suggests placing one or more eggs into a pot of cold water, then bringing the water to a boil. As soon as the water boils, the heat can be turned off and the eggs allowed to sit in the hot water.
To get a perfect boiled egg with a creamy yet firm yolk, cook for 10 minutes in boiling hot water. The perfect soft-boiled or hard-boiled egg will take between three and 15 minutes to cook.