Home Food 6 Facts about eggs that you should know

6 Facts about eggs that you should know


How should we keep the eggs? How can we know if an egg is fresh? Are the eggs washed? How long does it take for an egg to cook? What does labeling of eggs mean?

Some things you should know about eggs

The egg, besides being a basic ingredient of daily cooking, is a food with a high nutritional level. Experts advise to consume 3 to 5 eggs per week, since in addition to proteins they contain vitamins and minerals essential for our body.

These are some of the common issues that arise when we buy and consume eggs.

  1. Why are some eggs white and others brown?

Surely you have ever asked them, because the answer is very simple, the color of the eggshell depends on the breed to which the chicken belongs. Thus, the white-plumed roots lay white eggs, while the breeds that have brown feathers lay brown eggs.

In Chile there is a breed of chicken the Mapuche hen that puts them green.

The quality of the eggs does not depend on their color, but on the breeding of the hens.

  1. Do you have to wash the eggs?

The egg is one of the foods most sensitive to contamination and multiplication of bacteria.

Do you have to wash the eggs?

It is not advisable to wash or clean the eggs before storing them in the refrigerator because doing so can damage the shell which is porous and has a thin protective film that acts as a barrier to protect the egg from the entry of microorganisms that could damage the egg or provoke us diseases.

If you want to wash them it is advisable to do it at the time of using the egg, you can use water with a little detergent on the skin, and then rinse and dry it with kitchen paper and be very careful.

  1. How to keep eggs correctly

Normally in supermarkets they do not have them in the refrigerated area but once we buy them at home it is advisable to keep them in the fridge so that they stay fresh and do not lose their properties.

Some egg producers indicate that it is preferable to store the eggs on the shelves, not on the door, which is usually the place intended for it, because this minimizes temperature changes and agitation and bumps that occur each time we open and close the refrigerator door.

How to preserve eggs

It is also recommended to keep the eggs in their original packaging because it insulates them from bumps, odors and humidity, but if you prefer you can get a reusable egg cup to keep them.

What does the date of preferential indicate or how long does a fresh egg last?

The preferential date is set to be counted 28 days after the start (see previous graphic on the labeling), but if the egg is in good condition these days it can be consumed, after the preferred date it is advisable to consume it cooked and do not use it for willows or water.

  1. How to know if an egg is fresh?

To know if an egg is fresh we have to observe that the shell is clean and there are no cracks or breaks, if the egg is not fresh, the yolk will be flatter and the white will be denser and more dispersed. If it smells bad, never consume it.

How to know egg is fresh

The fresh egg must have broken yolk and the clear must be transparent

Trick to know if an egg is fresh

Put it in a glass with water: if it has expired, it will float; and if, on the contrary, it is fresh, it will fall to the bottom.

  1. Type of egg cooking and time

To make the perfect boiled egg you do not have to boil the water

The book Harold McGee’s Cooking and Foods, recommends boiling the eggs in low heat and without bubbles to prevent the agitation of bubbles from boiling water to break the shell, this way we will prevent the white from remaining with a gummy texture and the yolk Very dry .

Waterborne eggs

Once the water begins to boil leave 2-3 minutes, with this time you get an almost curd yolk and the liquid yolk, if you like more made with the clear curd, leave between 4 and 5 minutes.

How to make egg past water

Boiled eggs

The cooking time depends on how you like it, a cooking of between 6-8 minutes will leave the yolk curd but with a creamy texture, if you want it with the yellow yolk it is necessary to leave it 10 minutes.

  1. How to read the information on the labeling of the eggs

It is important to look at the packaging or labeling of the eggs because we can find information about the date of preferential, its category, the weight of the egg, the center where they have been packaged and classified, the way of raising the hens and the recommendations on how to keep them.

These are the data that the label contains and what they mean:


Eggs of category A: it is the category of more quality for the eggs destined to the house, they are fresh eggs that have not been washed nor cleaned, those of category A extrafresh are those that were sold during the first 9 days after the laying

Category B eggs: These are eggs that have had a cleaning, disinfected or refrigerated treatment and can not be included in the previous category


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