Egg Timer

Scientific egg boiling calculator by yolk firmness, size, temperature, and altitude

Select Desired Egg Doneness:

Click any yolk consistency to automatically configure the scientific boiling time

Soft / Runny
Liquid yolk for dipping soldiers
Jammy / Ramen
Fudgey, thick gooey center
Medium Custard
Tender set yolk, moist
Hard Boiled
Firm yolk, no grey ring
Salad / Extra Firm
Ideal for egg salads
04:30
Ready to boil. Bring water to rolling boil before lowering eggs.
Chef's Perfect Egg Tip:

Once timer rings, immediately transfer eggs to a bowl filled with ice water for 3 minutes. The thermal shock stops internal cooking instantly and contracts the egg white inside the shell, making peeling effortless!

About Egg Timer

Boiling an egg sounds simple, but just sixty seconds can be the difference between a luscious golden yolk and a chalky, overcooked disappointment. This kitchen egg timer takes the guesswork out of morning breakfasts and dinner prep by giving you tested, reliable cooking times for every stage of doneness.

Finding Your Ideal Yolk Texture

The presets above match the three most popular culinary preferences:

Adjusting for Size and That Essential Ice Bath Trick

For consistent results, always bring your water to a gentle rolling boil first, then use a spoon to lower your eggs into the saucepan carefully before starting the countdown. Remember to account for egg temperature: cold eggs taken straight from the refrigerator need about thirty seconds longer than eggs that have been sitting on the counter at room temperature. Similarly, extra-large eggs require a bit more time to heat through to the center compared to medium eggs.

The single most important secret to perfect boiled eggs is the thermal shock bath. As soon as the timer chimes, immediately transfer your eggs using a slotted spoon into a bowl filled with ice water or cold running tap water for three minutes. This instantly stops internal carryover cooking and causes the egg white to shrink slightly away from the inner shell membrane, allowing the shell to slide off effortlessly in clean, large pieces.

Frequently Asked Questions

What is the secret to peeling boiled eggs easily?
As soon as the timer goes off, transfer the eggs immediately into a bowl of ice water or cold running water for three minutes. The sudden cold shock shrinks the egg slightly inside its shell, making the peel slide off cleanly without tearing the egg white.
Why do overcooked egg yolks turn greenish-grey?
That discoloration happens when an egg is boiled for too long at high heat, causing natural iron in the yolk to react with sulfur in the white. While it is completely safe to eat, keeping an eye on the timer and chilling the egg right away keeps the yolk bright yellow and velvety.
Should I start eggs in cold water or boiling water?
Starting eggs in boiling water (known as a hot start) makes them much easier to peel later because the quick burst of heat prevents the egg membrane from sticking to the shell. Just lower them gently with a spoon so they don't crack against the bottom of the pot.