Why do we add vinegar when we are poaching an egg? | Wellington Faculty of Science | Victoria University of Wellington (2024)

Dr Robert Keyzers, from Te Wānanga Matū—School of Chemical and Physical Sciences answers:

"On the inside of your standard chicken egg we have two main components. We have the egg yolk and then we have the egg white.

"The egg white itself is comprised of a bit of water and mostly a protein called ovalbumin.When you start to heat up a protein like ovalbumin something called denaturation starts to occur and that’s when the protein breaks down and it starts to solidify. But we can also do denaturing in other ways. The other way is to increase the acidity of how you’re cooking it.

"Vinegar is an inherently acidic material, so if we add a few drops of vinegar into that boiling water that is going to increase the rate of denaturing and it’s going to make that happen faster and help the poached egg hold its shape better."

Want to learn more?

Get the answers

Why do we add vinegar when we are poaching an egg? | Wellington Faculty of Science | Victoria University of Wellington (1)

Why do we add vinegar when we are poaching an egg? | Wellington Faculty of Science | Victoria University of Wellington (2)

Why do we add vinegar when we are poaching an egg? | Wellington Faculty of Science | Victoria University of Wellington (3)

Why do we add vinegar when we are poaching an egg? | Wellington Faculty of Science | Victoria University of Wellington (2024)

FAQs

Why do we add vinegar when we are poaching an egg? | Wellington Faculty of Science | Victoria University of Wellington? ›

Using vinegar in the poaching water can help the egg whites coagulate faster and reduce feathering, however, it is not a necessary ingredient. Some prefer to poach their eggs without vinegar for a more delicate flavour.

What does vinegar do in the poaching liquid? ›

Using vinegar in the poaching water can help the egg whites coagulate faster and reduce feathering, however, it is not a necessary ingredient. Some prefer to poach their eggs without vinegar for a more delicate flavour.

What does soaking an egg in vinegar do? ›

The vinegar contains ethanoic acid (also known as acetic acid), which reacts with calcium carbonate in the eggshell. One product of the reaction is carbon dioxide gas, which appears as little bubbles forming on the eggshell. Over time, this chemical reaction dissolves away the hard eggshell.

Does adding vinegar to boiled eggs help? ›

The vinegar in the water makes the eggs easier to peel. Here's why: The vinegar's acid not only dissolves some of the calcium carbonate in the shell, it also helps the whites set faster. Running the hard-boiled eggs under cold running water as you're peeling, meanwhile, helps the shell separate from the membrane.

Can you eat raw eggs with vinegar? ›

What About Raw Egg Dishes Like Mayonnaise? It's fine to make your own mayonnaise and aioli at home providing you take precautions. Only small amounts should be prepared at a time and enough vinegar or lemon juice must be added to acidify the sauce to a pH of 4.2 or less.

What happens if you poach an egg without vinegar? ›

Do you need to add vinegar to poach eggs? Adding a splash of vinegar to the water sets the whites faster, so you have fewer wispy bits. However, if you follow the other tips this extra step usually isn't necessary.

What is the best trick for poached eggs? ›

Use vinegar

Poaching an egg in a little vinegar helps the egg maintain its form while poaching. The vinegar helps the egg whites cook faster, allowing the egg to better stay together. Just adding about a Tablespoon of vinegar to your water can make all the difference.

Why do my poached eggs break up? ›

Boiling too rapidly = egg jiggles around too much and causes the whites to disintegrate. The best way round this – bring to boil, then turn it down so there's no bubbles breaking the surface but there's little bubbles coming up from the base of the pot, then immediately drop eggs in.

Can you use malt vinegar instead of white vinegar for poached eggs? ›

What kind of vinegar do you use for poached eggs? White vinegar is best, as it's completely clear. But essentially any type of acid will work, for example malt vinegar, lemon juice and apple cider vinegar (just be careful as some acids may alter the taste of the egg).

Can I use white wine vinegar for poaching eggs? ›

Adjust the heat so that it maintains this simmer. Then, add a tablespoon of white wine vinegar and stir. Stir the water in a circular motion to create a vortex at the center of the pot. Carefully pour the cracked egg into the center of the vortex, and gently stir again.

Can you still eat the egg soaked in vinegar? ›

Keep in mind you created your egg by soaking a raw egg in vinegar sitting at room temperature for a few days. That is not how to treat eggs you are going to eat! Even if you stored the egg in the refrigerator, I still would not recommend eating the raw egg.

How long to soak eggs in vinegar before poaching? ›

For any use. Soak the eggs in vinegar for 10-12 minutes to set the egg white.

Why does vinegar stop eggs from cracking? ›

Adding vinegar to the water helps the proteins in the egg white coagulate faster which further plugs any cracks in the egg.

Why do you rinse eggs with vinegar? ›

Vinegar can aid in removing stains from the shell and is known to have antibacterial properties due to its acidity (Entani et al., 1998). The USDA requires that wash water be changed every four hours in commercial production.

Why put vinegar on fried eggs? ›

Enhances taste

Vinegar is not just utilitarian. It doesn't just help cleanse your eggs or help you peel their shells easier. It is also a very effective taste enhancer. Try adding a few drops of vinegar to the next batch of eggs you cook.

Can I color eggs without vinegar? ›

You can use lemon or lime juice as a 1 to 1 replacement for vinegar in egg dye recipes. For example, if the recipe calls for 1 teaspoon (4.9 mL) of vinegar, use 1 teaspoon (4.9 mL) of lemon or lime juice. You can use fresh or bottled lemon or lime juice. Both will work the same way.

Top Articles
Latest Posts
Article information

Author: Allyn Kozey

Last Updated:

Views: 5641

Rating: 4.2 / 5 (63 voted)

Reviews: 94% of readers found this page helpful

Author information

Name: Allyn Kozey

Birthday: 1993-12-21

Address: Suite 454 40343 Larson Union, Port Melia, TX 16164

Phone: +2456904400762

Job: Investor Administrator

Hobby: Sketching, Puzzles, Pet, Mountaineering, Skydiving, Dowsing, Sports

Introduction: My name is Allyn Kozey, I am a outstanding, colorful, adventurous, encouraging, zealous, tender, helpful person who loves writing and wants to share my knowledge and understanding with you.