Welcome to the David McDavid Automotive Group-We are a Houston, Austin, Frisco, Irving, Fort Worth and Plano TX dealership group offering new cars and used cars including Honda, Acura, Ford, Lincoln and Nissan vehicles.
To firm up at 100Â° it takes an additional 2 minutes (you can test this by dropping some egg yolk into boiling water in a freezer bag and observe, I just did that to verify my old numbers). So in this case you'll have 9 minutes for a hard boiled egg and around 5 for soft boiled. By then the time/temp equation has normalized and you'll see longer and longer spans between consistency changes. Custardy is about 5 minutes for a medium (Grade AA) egg. Secondly, my approach.
1 If you are using large eggs, cook the eggs for 4 minutes, for a runny yolk and 6 minutes for a medium-boiled egg, where the yolk is only slightly runny.2  For medium sized eggs, reduce these cooking times by one minute.oft-boiled eggs. Soft-boiled eggs served with soldiers are a favourite breakfast dish for many children and even some adults too. To be precise, the eggs are not actually boiled; they are in fact simmered for a minimum of three minutes, depending on how well or how runny the diner likes his egg.