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.
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.
According to Serious Eats, eggs should be placed in water that already has boiled and left to simmer for 11 minutes to hard boil or six minutes to soft boil. They are then ready to eat hot or serve cold after chilling in an ice bath for about 15 minutes.
A large egg will be soft-boiled in 4 to 5 minutes, medium-boiled in 6 minutes and hard-boiled in 15 minutes. A medium egg will be soft-boiled in 3 minutes, medium-boiled in 5 minutes and hard-boiled in 12 minutes.
A soft-boiled egg requires approximately two minutes to obtain the desired consistency. Eggs of different sizes may require slightly more or less time to be soft-boiled.
Re-boiling a soft-boiled egg is fine as long as it has not been sitting out for over 2 hours. If it has been out for over 2 hours, there might be the possibility of bacteria contamination.
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.
A soft-boiled duck egg should cook for six to seven minutes, resulting in a slightly runny yolk. A hard-boiled duck egg should cook for nine minutes.
A hard-boiled egg weighs between 53 and 73 grams, depending on the size classification of the egg. Eggs classified as small are closer to 53 grams when hard boiled, while hard-boiled eggs classified as very large or extra large are 73 grams or more.