Energy Efficient Boiling of Eggs

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Discussion Overview

The discussion revolves around methods for energy-efficient boiling of eggs, exploring various techniques, safety considerations, and the balance between energy savings and other factors such as time and food quality. Participants share personal experiences and suggestions related to the boiling process, including temperature management and cooking methods.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • Some participants propose boiling eggs by heating water to a boil and then turning off the heat, suggesting that this method can yield hard-boiled eggs without the need for a timer.
  • Others argue that while this method may be energy-efficient, it raises questions about timing and the practicality of guessing how long to wait.
  • One participant suggests starting with room temperature eggs and salting the water to raise the boiling point, while also considering altitude effects on boiling temperature.
  • Concerns about food safety are raised, with a recommendation to maintain internal egg temperature above 185°F for about 10 minutes to avoid salmonella.
  • Another participant mentions that microwaving eggs can lead to explosions unless precautions, such as poking a hole in the shell, are taken.
  • Some participants discuss the balance of energy efficiency with other factors like time efficiency, food safety, and quality, suggesting various methods to minimize water use and heat loss.
  • One participant shares a method for peeling hard-boiled eggs that involves rapid cooling in cold water to ease the peeling process.

Areas of Agreement / Disagreement

Participants express multiple competing views regarding the best methods for boiling eggs, the importance of timing, and food safety practices. There is no consensus on the optimal approach or the specific temperature and timing requirements.

Contextual Notes

Participants note various assumptions, such as the initial temperature of the eggs and water, the effects of altitude on boiling point, and the potential for different cooking methods to yield varying results. Some claims about food safety and cooking times are challenged, indicating a lack of settled agreement on these points.

Who May Find This Useful

This discussion may be of interest to individuals looking for energy-efficient cooking methods, those concerned with food safety, and anyone experimenting with different techniques for boiling eggs.

Hornbein
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Put the eggs in the water, heat it to a boil, then immediately turn off the heat. Wait. The eggs will be hard boiled. It has the extra advantage that you don't have to watch a timer. And you will never forget to turn off the stove and boil them dry.

I expect that it isn't even necessary for the water to go all the way to boiling but I haven't tried that yet. I don't refrigerate the eggs, that should make a difference.
 
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Added advice
If you try this at home, do NOT watch the pot; a watched pot never boils.
 
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Hornbein said:
Put the eggs in the water, heat it to a boil, then immediately turn off the heat. Wait. The eggs will be hard boiled. It has the extra advantage that you don't have to watch a timer. And you will never forget to turn off the stove and boil them dry.
Well sure, lots of things would be energy efficient if we didn't have to balance them with other priorities, like time.

I notice your step 4 is "wait". Since you disallow use of a timing device, you have to guess. How long? A day? A week? A year?

What if I am a Turing machine? I'll encounter the heat death of the universe first.
 
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Hornbein said:
Put the eggs in the water, heat it to a boil, then immediately turn off the heat. ...
While not primarily energy saving, I suggest two additional steps:

1) Begin with eggs and water in the pot at room temperature. Salt the water in order to raise boiling point, also adjusting for altitude above sea level. Higher elevation means lower air pressure lowering boiling point. With shells intact, this will not add excess sodium to your meals.

To avoid food poisoning particularly salmonella, maintain internal food temperature above 185 F. for ~10 minutes. Test your method by inserting a food temperature probe into one egg just to be safe before this next step.

2) After cooking, allow the pot containing water and eggs to cool in your sink. Run cold tap water into the pot until the eggs are cool to the touch. This temperature change slightly separates the shell from the albumin making peeling a snap.

Peel the hard boiled eggs by gently rolling on a hard clean surface with the palm of your hand. Remove the peel and plop the egg in fresh water. Store hard boiled eggs covered with water in refrigerator. I have used this method using cold water to contract the edible egg from the warm shell in restaurants to produce hundreds of perfect hardboiled eggs. Bon appétit!


edit 03042025: Removed (strikethrough) paragraph on food safety as possibly outdated. For instance temperature readings use different methods than when I owned or worked in a restaurant.

Clarified that "this method" refers to rapid cooling after cooking to improve peeling and reduce food waste.
 
Last edited:
In addition to how long, how much water per egg? This will affect the temperature profile and the energy savings, if any.
 
Hornbein said:
Energy Efficient Boiling of Eggs
Put the eggs in the water, heat it to a boil, then immediately turn off the heat. Wait.

Klystron said:
... I have used this method in restaurants to produce hundreds of perfect hardboiled eggs. Bon appétit!
Perfection is the enemy of energy efficiency.

Boiled eggs are multidimensional ( Energy efficiency; Time efficiency; Maximise quality; Maximise food safety; Minimise water )

Close pack the eggs in multiple layers to minimise added inter-egg water.
Wrap the container in a thermal blanket to reduce heat loss while approaching the boil. Heat in a microwave oven to avoid convective losses from a gas flame, or conductive losses from a resistive element.
 
Swamp Thing said:

16 minutes!?! No way.

Microwaving eggs in the shell leads to explosion. I've tried microwaving the interior but found the result unappealing. It was 15 years ago so I don't recall why.
 
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Klystron said:
To avoid food poisoning particularly salmonella, maintain internal food temperature above 185 F. for ~10 minutes. Test your method by inserting a food temperature probe into one egg just to be safe before this next step.
Please provide a reference for this. Most sources I have seen are less draconian. Certainly overcooking your salmonella laden egg (<1:10,000 in US are infected) will take care of the problem but with the lowly chicken egg becoming a luxury food, it seems unfortunate to treat them badly.
I believe that most infections come from soft boiled eggs and denaturing both whites and yolks should be sufficient.
Incidentally I can attest that microwaving eggs in the shell can produce RRBSs (Rapid Redecoration of Breakfast Spaces) At least wear goggles should you be tempted to experiment
 
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The main (only) cook in this household states that microwaving an egg works fine if you first poke a needle hole in the shell into the air bubble.

According to https://www.thepoultrysite.com/articles/air-cell-up-when-setting-eggs, the airbubble is at the big, blunt end of the egg.

"The air cell is situated at the blunt end between the shell membrane and the egg membrane."
 
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