The issue of food safety is always acute, especially when it comes to perishable food such as chicken eggs. Many housewives wonder how long they can keep this product in the refrigerator so as not to harm the health of their household. Shelf life directly depends on the temperature regime, the integrity of the shell and the method of pre-treatment.
Modern refrigeration units can significantly extend the life of products, but even they have their limits. Temperature conditions is a critical factor: at too low a temperature, the contents may freeze and burst, and at a high temperature, bacteria will begin to multiply. Proper placement in the fridge compartment plays no less a role than the fact of storage itself.
In this article we will analyze in detail the time frames established by GOST and the real indicators that depend on the conditions in your refrigerator. You will learn how to determine the freshness of a product without breaking the shell, why you cannot wash eggs before storing and what to do if the expiration date on the package has expired.
Factors influencing the shelf life of eggs
The first thing you should pay attention to is the integrity of the protective layer of the shell. Nature has provided a special cuticle that seals the pores and prevents bacteria from penetrating inside. If you bought washed eggs in a supermarket, their lifespan is significantly reduced, since the protective film is washed off with water. In this case, the product must be consumed much faster.
Temperature stability is the second key point. Constant temperature changes, for example due to frequent opening of the door or storage on a door shelf, lead to condensation. A humid environment facilitates the penetration of microbes through the pores. Stable cold in the depths of the refrigerator, away from the freezer and door, creates ideal conditions for preservation.
The original status of the product is also important. Dietary eggs, which have category "D", are stored less than table eggs. Over time, moisture from the protein evaporates through the pores, and air penetrates inside, increasing the air sac. It is this process that determines how long the product remains suitable for consumption in its raw form.
Shelf life of raw eggs according to GOST and SanPiN
Official regulatory documents strictly regulate how long the product can be on the store shelf and in the home refrigerator. According to GOST, eggs are considered dietary only within 7 days after laying. After this period, they automatically become table eggs, which must be reflected in the labeling.
Table eggs purchased in a store, subject to a temperature range of 0 to +20 degrees Celsius, can be stored for up to 25 days. However, these are the maximum numbers for the store. At home, where the temperature regime is often violated, it is safer to focus on more modest numbers - up to 90 days in the refrigerator at a temperature no higher than +4 degrees.
What do the letters and numbers on the marking mean?
The letter "B" denotes the highest category (75 g or more), "O" - selected (65-74.9 g), "1", "2", "3" - first, second and third categories, respectively. The letter "D" means dietary (up to 7 days), "C" means table. The date of marking is the date of sorting, which usually coincides with the date of demolition.
It is important to note that the specified dates are only relevant for undamaged specimens. If you notice a crack or chip, this product must be used within 1-2 days, subjected to thorough heat treatment. Long-term storage of damaged eggs is unacceptable due to the high risk of salmonellosis infection.
Table: How long eggs are stored in the refrigerator
For ease of perception of information about how long an egg lasts in the refrigerator, depending on its condition, we have compiled a summary table. This data will help you quickly navigate and not eat a spoiled product.
| Product type | Storage conditions | Shelf life (max.) | Temperature conditions |
|---|---|---|---|
| Dietary (category D) | Refrigerator | 7 days | 0..+20°C |
| Canteens (category C) | Refrigerator | 90 days | 0..+20°C |
| Washed eggs | Refrigerator | 14-21 days | +2..+4°C |
| With cracks/chips | Refrigerator | 1-2 days | +2..+4°C |
| Broken (in containers) | Refrigerator | 2-4 days | +2..+4°C |
Please note that the time frame for washed eggs is much shorter. If you practice washing the product before putting it in the refrigerator, try not to buy them for future use in large quantities. Violation of the integrity of the cuticle Opens a direct path for bacteria, such as salmonella, that may be on the surface of the shell.
How long do boiled eggs last?
After heat treatment, the biological processes inside the product stop, but another process begins - the destruction of the protein structure under the influence of time. Boiled eggs, regardless of whether they are hard-boiled or soft-boiled, have a much shorter shelf life than raw eggs. A peeled boiled egg can remain in the refrigerator for no more than 24 hours.
If you hard-boil the egg and leave it in the shell, the shelf life will increase to 3-4 days. However, already on the third day, the white may acquire a rubbery consistency, and the yolk may turn green at the edges, which indicates a chemical reaction of sulfur and iron. This is not always dangerous, but the taste is lost.
- 🥚 Soft-boiled eggs are stored for no more than 2 days in the refrigerator, since the liquid yolk is a favorable environment for bacteria.
- 🥚 Hard-boiled eggs (in the shell) remain fresh for up to 4 days at a temperature of +2..+4 degrees.
- 🥚 Peeled boiled eggs must be eaten within 12-24 hours, otherwise they will weather and lose their taste.
- 🥚 Easter colored eggs are stored less: natural dyes (onion skins) allow them to be kept for up to 5 days, and chemical ones - up to 3 days.
If there are microcracks on the shell from knocking during the “Christening”, bacteria could get inside. It is better to consume such products first.
☑️ Checking the boiled egg
How to properly store eggs in the refrigerator
Many housewives mistakenly believe that the special recess on The refrigerator door is the best place for eggs. In fact, the door is the area with the most unstable temperature. Every opening of the refrigerator causes temperature fluctuations, which negatively affects the product. It is best to store eggs in main chamber, on the middle or lower shelf.
The ideal option is storage in the original cardboard packaging. Cardboard protects against foreign odors, which eggs easily absorb through the pores of the shell, and prevents contact with other products. Plastic containers are also suitable, but they need to be washed regularly so as not to create a breeding ground for bacteria.
Do not place eggs next to meat, fish or raw vegetables. Cross contamination is a real threat. If there are traces of droppings or feathers on the egg shell, they can be gently wiped with a dry cloth, but washing with water before storage is strictly not recommended. Water washes away the protective layer, and the shelf life is reduced significantly.
⚠️ Attention: Never store eggs in the freezer in their shells! When freezing, the liquid inside expands, the shell bursts, and the contents become unsuitable for use in cooking (the yolk turns into a jelly-like mass).
How to determine the freshness of an egg: simple methods
There are several folk and scientific ways to check how long an egg can be stored and whether it is even suitable for consumption. The most famous method is testing in water. Pour cold water into a glass and place the egg in it. If it lies quietly on the bottom horizontally, the product is fresh, it is no more than a week old.
If the egg floats up with the blunt end up, but still touches the bottom, it is already about 2-3 weeks old. It can still be used, but only after careful heat treatment (cook for at least 10 minutes). If the egg floats on the surface of the water, it is spoiled. A large amount of gas has formed inside, and eating such a product is dangerous to life.
- 👀 Visual inspection: the shell should be matte. A glossy shine indicates that the protective layer has been destroyed and the product is old.
- 👂 Listening: shake the egg near your ear. If gurgling or rolling is heard, it means that the white has become liquid and the air sac has increased.
- 💡 Ovoscopy: if you shine an egg through a flashlight, the yolk should be in the center, and the air sac should be no more than 7 mm.
- 🍳 When breaking: fresh white holds its shape and does not spread, the yolk elastic and tall. An old egg has a watery white, and the yolk bursts immediately.
Another sign is the smell. Break the egg into a separate bowl. The fresh product has a neutral odor or a slight smell of lime. A spoiled egg emits an unpleasant hydrogen sulfide odor (the smell of rotten eggs) that cannot be ignored. If in doubt, it is better to throw away the product.
Why can the yolk be green?
A green rim around the yolk in a boiled egg appears due to the reaction of sulfur (from the white) and iron (from the yolk) during prolonged cooking or storage. This is safe, but indicates that the egg is overcooked or a little old.
Common storage mistakes
One of the most common mistakes is storing eggs in plastic bags. In such a container, the product “suffocates”, gas exchange is disrupted, and condensation forms on the shell, which contributes to the development of mold. In addition, eggs in a bag can crush each other.
Also, many ignore the proximity of goods. Eggs have a porous structure and actively absorb odors. Storing next to smoked meats, fish, spices or chemicals (if they accidentally ended up in the refrigerator) will cause the product to acquire an off-flavor. Organoleptic properties will be hopelessly spoiled.
⚠️ Attention: Do not wash the eggs immediately after purchase if you plan to store them for a long time. Do this just before cooking. Washing destroys the natural protective film (cuticle), opening the pores for bacteria.
Another mistake is a sudden change in temperature. Do not leave purchased eggs on the table for several hours and then suddenly put them away in the cold. Allow the product to adapt or place it in the refrigerator immediately. Sharp cooling can lead to microcracks in the shell that are invisible to the eye.
FAQ: Frequently asked questions
Is it possible to freeze raw eggs in the refrigerator?
You cannot freeze eggs in their shells - they will burst. However, you can freeze the contents. To do this, break the eggs, lightly shake them (or separate the whites and yolks), add a pinch of salt or sugar (to prevent the yolk from becoming jelly-like) and freeze in airtight containers. The shelf life of frozen mass is up to 1 year. This mixture can only be used for baking or omelettes.
How long can eggs be stored at room temperature?
At a temperature of +15..+20 degrees Celsius, raw eggs can be stored for up to 25 days (if they are not washed). In the hot season, when the temperature is above +20 degrees, the period is reduced to 7-10 days. It is not recommended to store washed eggs at room temperature for more than 3-4 days.
What to do if there is a blood stain on the egg?
Small blood inclusions in the yolk or white do not mean that the egg is spoiled or that a chicken can hatch from it (if it is not fertilized and has not been incubated). It's just a broken vessel. Such an egg is edible if there is no foreign odor. The blood clot can simply be removed with a knife or fork before cooking.
Can I use expired eggs?
If the expiration date (90 days for tableware) has recently expired (1-3 days), and a test in water showed that the egg is sinking and there is no smell, it can only be used after a long heat treatment (cooking hard-boiled, baking at high temperatures). For preparing fried eggs, eggnog or meringue, such eggs are strictly prohibited.