A Guide to Making Perfect Hard-Boiled Eggs

The saying goes, “There’s more than one way to crack an egg.” Well, there’s also more than one way to boil one — but we’re here to help demystify how to make the perfect hard-boiled egg.

Hard-boiling eggs in their shell is a popular and relatively easy way to prepare this versatile protein source. Hard-boiled eggs make for a convenient snack, fun appetizer, or tasty salad topper — among many, many other uses.

We take a closer look at why hard-boiled eggs deserve a spot in your diet and give you some popular hard-boiling hacks. The goal? To learn which methods really are all they’re cracked up to be and will ultimately lead to the perfect hard-boiled final product.

But why hard-boil them? Because, put plainly, they’re easy. Hard-boiling makes eggs more portable (they come in their own carrying case) and less messy to eat, and it appeals to people who aren’t fans of runny yolks.

Making hard-boiled eggs, though, isn’t necessarily as straightforward. Even a quick internet search yields plenty of variations on the technique, such as adding baking soda to the water for easy-to-peel shells and a mason jar egg hack. Here, we break down how to hard-boil the perfect egg.

What to Put in the Water

Should you add anything to the cooking water when making hard-boiled eggs? Some sources, such as the blog Wholesome Yum, recommend adding vinegar to the cooking water. The theory is that the vinegar permeates the shell and makes the eggs easier to peel after cooking. Some vinegar advocates believe it may also help prevent the still-liquid contents from spreading into the water in the event an eggshell cracks during cooking. Another idea, recommended by the Food Network, is that adding a small amount of baking soda to the boiling water raises the pH of the eggs, making them easier to peel once cooked. You could try one or the other of these tricks, but not both at the same time, as the acidic vinegar and basic baking soda cancel each other out pH-wise.

Temperature

Believe it or not, the temperature of the eggs and the temperature of the water before are key factors in determining how easy the eggs will be to peel. Start with cold eggs, straight from the refrigerator, advises Smithsonian Magazine. While some people start with the eggs in cold water and let the entire pot come to a boil, it’s actually better to place the eggs directly into or over water that is already boiling.

The heat from the water (especially contrasted with the cold egg) causes the egg protein to coagulate immediately, pulling away from the eggshell. This action is what makes eggs cooked in this way significantly easier to peel. Bring a pot of water to a boil, then lower the temperature to a simmer just before using a spoon to carefully add the eggs.

Method

While “boiled” is there in the name, eggs can also be hard-cooked with steam or even sous vide (a method in which you immerse food that’s vacuum-sealed in a bag into heated water). According to America’s Test Kitchen, steaming the eggs is the clear winner, because adding cold eggs to a pot of boiling water lowers the water temperature initially, preventing the eggs from cooking quickly and evenly. You won’t have this issue when using a steamer insert.

Age of the Eggs

While the shell color doesn’t matter, when it comes to easy-to-peel hard-boiled eggs, older eggs are the way to go. As it turns out, the egg white naturally pulls away from the membrane as eggs age, which means that farm-fresh eggs are actually harder to peel.

So while fresh eggs are delicious, they’re best used in other ways. Opt for store-bought (aka older) eggs if you’re planning to hard-boil a batch. While the ideal time from laying to hard-boiling is a subject of debate, the general consensus is that older is better. Serious Eats recommends buying eggs that are close to their expiration date or letting your farm-fresh eggs sit in your fridge for at least two weeks.

Cooking Time

How long you cook the eggs is another critical factor in determining the quality of the end product. Start the timer as soon as you add the eggs, and aim for 10 to 11 minutes for creamy yolks and 12 to 13 minutes for perfectly cooked-through yolks. Of course, don’t forget to add more cooking time if you’re using extra-large or jumbo eggs — Savory Experiments recommends an additional 1 to 2 minutes.

In general, you’ll want to cook only as many eggs at a time as will fit in a single layer in your steamer insert or pot. If you need to cook a large number of eggs, cook them in batches rather than overcrowding your pot.

Ice Bath

Once the timer goes off, use a spoon (steam is hot!) to carefully remove the eggs from the steamer insert and transfer them to a bowl filled with ice water (an ice bath). Allow the eggs to sit in the ice bath for several minutes until you can easily handle them. The ice water stops the eggs from continuing to cook past your desired doneness. Some suggest this polar plunge also makes them easier to peel because it shocks the egg and causes it to shrink away from the shell.

How to Peel

You may feel like the tough part is over, but peeling the egg can be the most frustrating step. If you have successfully cooked your egg over boiling water and then immediately cooled it in an ice bath, you’ll be in good shape for an egg that peels quickly and easily. In general, gently tapping the egg on a flat surface and then removing the eggshell piece by piece is the recommended process. If, however, you plan to shell several eggs, this process can be time consuming, and you’ll likely make divots in your eggs if you rush.

If you’re feeling adventurous, there are egg-peeling hacks you can try. Several YouTube videos show that you can “blow” an egg out of its shell. To do it, you crack and peel a small circle from the top and bottom of the egg, roll it on a flat surface to loosen the shell, then blow on one end. While this may be a good party trick, it’s not the most efficient or hygienic method.

Another option: Peel eggs underwater. One method, via TikTok, recommends doing this in a mason jar. Fill the jar one-quarter full with water and place a hard-boiled egg inside. Cover the jar tightly, shake it gently a few times, and the shell will slip right off. You can then retrieve the egg with a spoon. We tried it, and it works!

However you peel ’em, perfect hard-boiled eggs are sure to enhance your day. Give our favorite recipe a try.

• Hard-boiled eggs are a great high-protein, vitamin-rich food that can be a healthy snack on its own or used in a variety of other dishes.
• There are many methods for hard-boiling eggs, including making sure the eggs themselves aren’t too fresh, adding baking soda or vinegar to the water, and employing various egg-peeling hacks.
• Our favorite recipe for the perfect hard-boiled egg is to use cold eggs, a steamer basket, and an ice bath.