You can use either salt or vinegar (or both) when boiling eggs, primarily to help with cracking and peeling: Vinegar (acid) helps coagulate the white if the egg cracks, preventing a big mess, and may soften the shell for easier peeling, while salt can also help toughen the shell slightly to prevent cracks and may make peeling easier. Many people find adding a splash of vinegar or a bit of salt (or both) helpful for easier peeling and cleaner breaks, though the age of the egg is a major factor in peelability, say Quora users.
Adding a teaspoon of vinegar to the water may help keep egg whites from running out if an egg does crack while cooking. Some people also find adding 1/2 teaspoon of salt to the water helps prevent cracking as well as making the eggs easier to peel.
The addition of vinegar to the water is believed to make the peeling job easier. Since acetic acid, which is essentially vinegar, can break down the calcium bicarbonate found in egg shells, it is hypothesized this can aid in an easier peeling process.
For easy-to-peel hard-boiled eggs, use a hot start by adding eggs to boiling water, steam them for about 13 minutes, then shock them in an ice bath to stop cooking and firm up the whites, which helps the shell separate cleanly from the membrane, especially when peeled under running water or starting from the air pocket at the large end. Adding a teaspoon of baking soda to the cooking water can also help the whites pull away from the shell.
The "555 egg method" is a popular technique for making easy-peel hard-boiled eggs in an Instant Pot or other pressure cooker, involving 5 minutes of high pressure, a 5-minute natural pressure release, and a final 5-minute ice bath to stop cooking and loosen the shell, though results can vary, with some finding it perfect and others needing adjustments.
Vinegar (acid) breaks apart the solid calcium carbonate crystals (base) in the eggshell into their calcium and carbonate parts. The calcium ions stay dissolved in the vinegar (calcium ions are atoms that are missing electrons), while the carbonate goes on to make carbon dioxide — the bubbles that you see.
The 3-3-3 method cooks eggs for 3 minutes at high pressure. Next, there's a 3-minute natural pressure release. Then, cool the eggs in an ice bath for 3 minutes. This method gives slightly softer yolks than the 5-5-5 method.
Put the eggs in a large pot with a lid. Pour cool water over the eggs until fully submerged and add the baking soda to the water. Put the pot over high heat and bring to a boil. Once the water is at a rolling boil, turn off the heat and cover the pot with the lid.
My solution is once they're boiled, drain the hot water and add cold water . Then, crack them gently to break the shell and membrane, and drop them into the water for a minute. The water works its way in between membrane and boiled egg.
You can boil eggs in either cold or hot water, but starting in cold water is often recommended for easier peeling and to prevent cracking by allowing gradual heating, while adding eggs to already boiling water gives more precise timing but requires care to avoid shocking them. For consistent results, especially hard-boiled, many sources suggest starting in cold water and bringing to a boil before cooking for a specific time, then shocking in ice water.
Gently place the egg in the glass and cover it with vinegar. Leave the egg for about 48 hours. You can speed up the process by changing the vinegar halfway through. Remove the egg and gently rub the eggshell away.
Egg white solidifies more quickly in hot, salty water than it does in fresh. So a little salt in your water can minimize the mess if your egg springs a leak while cooking. The egg white solidifies when it hits the salt water, sealing up the crack so that the egg doesn't shoot out a streamer of white.
For easy-to-peel hard-boiled eggs, use a hot start by adding eggs to boiling water, steam them for about 13 minutes, then shock them in an ice bath to stop cooking and firm up the whites, which helps the shell separate cleanly from the membrane, especially when peeled under running water or starting from the air pocket at the large end. Adding a teaspoon of baking soda to the cooking water can also help the whites pull away from the shell.
Yes, 10 minutes is enough time to hard boil an egg, resulting in a classic, fully set yolk that's mashable but not dry or chalky, perfect for egg salad or deviled eggs; for softer yolks, cook for less time (around 4-8 minutes), and for very firm yolks, 10-12 minutes is ideal.
However, it's important to note that too much vinegar can affect the flavor of the eggs because the eggshell is porous and will absorb the flavor of vinegar in the water. Therefore, adding one tablespoon or 15 ml of vinegar for every quart of water in the pot is recommended.
The eggshells boiled with vinegar didn't feel softer than others, but peeling them felt noticeably easier. These peeled eggs turned out smoother than those boiled with baking soda or salt, bearing the fewest pockmarks and only a couple of shallow indentations where pieces of white clung to the shells as I peeled.
Adding a tablespoon of vinegar to your boiling water is a great way to stop pieces of pasta from sticking together. Alkaline tap water can cause the pasta to release more starch and become sticky. Vinegar acidifies the water to prevent this.
De-shell the eggs by placing them in a large container so that they touch as little as possible. Add vinegar to cover the eggs (see photo below), and cover the container. Allow the eggs to sit for 24 to 48 hours at room temperature.