Eggs are one of the most versatile products in the kitchen, but their storage often raises questions. How many days can you keep eggs in the refrigerator without risking your health? Why do some sources talk about 30 days, while others talk about 90? And why do quail eggs last longer than chicken eggs? In this article we will look at all the nuances: from official standards to traditional methods of checking freshness.
It is important to understand that the shelf life depends not only on the type of eggs, but also on the conditions of their transportation, processing and even the breed of poultry. We analyzed the data Rospotrebnadzor, GOST 31654-2012 and recommendations WHOto give you accurate answers. We have also prepared practical tips on how to prolong the freshness of eggs and avoid food poisoning.
Official shelf life of eggs in the refrigerator according to GOST
In Russia there is GOST 31654-2012which clearly regulates the shelf life of eggs depending on their category and conditions. According to the document, dietary eggs (labeling D) are stored up to 7 days at a temperature of 0°C to +20°C, and table eggs (labeling WITH) - up to 25 days in the refrigerator (at +2°...+4°C) and up to 90 days in industrial conditions (at -0,5°...-1,5°C).
However, in practice, these periods may vary. For example, eggs from farms without industrial processing (washed or unwashed) are stored differently in Europe and the USA: eggs there must be washed before sale, which reduces their shelf life. up to 4-5 weeks in the refrigerator.
| Type of eggs | Shelf life in the refrigerator (+2°...+4°C) | Shelf life at room temperature | Notes |
|---|---|---|---|
Chicken dietary (D) |
Up to 7 days | Up to 3 days | Not subject to long-term storage |
Chicken table (C) |
Up to 25 days | Up to 20 days | At a temperature not exceeding +20°C |
| Quail | Up to 30 days | Up to 10 days | Thanks to the dense shell |
| Duck/goose | Up to 14 days | Up to 5 days | High risk of salmonella |
⚠️ Attention: Packages of imported eggs (especially from the EU) often indicate an expiration date of up to28 daysfrom the date of packaging, but this is subject to storage at+5°CIn Russian realities, it is better to focus on21 daysfor chicken eggs.
It is interesting that in Japan eggs are stored up to 2 months at room temperature - thanks to special processing technology shells. In Russia, such methods are not used, so adhere to local standards.
Why eggs spoil: a scientific explanation
Egg is a biologically active product that loses its protective properties over time. The main reasons. spoilage:
- 🔬 Carbon dioxide: A fresh egg contains
CO₂, which creates a protective environment inside. Over time, it evaporates through the pores of the shell, and the pH of the protein increases, which promotes the growth of bacteria. - 🦠 Salmonella: Can penetrate through the shell, especially if it is damaged or the egg is unwashed. The risk is higher for duck and goose eggs.
- 💧 Loss of moisture: Water evaporates through the pores, causing the white to become liquid and the yolk to become flat.
- 🧪 Oxidation of fats: During long-term storage, the yolk may acquire a metallic taste due to oxidation.
The most dangerous microbe is Salmonella enteritidis. shell and inside the egg (if the chicken was infected). According to Rospotrebnadzor, up to 10% eggs on the shelves can be contaminated with salmonella, so washing and proper storage are critical.
How to properly store eggs in the refrigerator: 5 key rules
Even if you bought eggs with a supply, their freshness depends on how where and how they are in the refrigerator:
- Temperature: Optimally -
+2°...+4°C. On the refrigerator door, the temperature fluctuates up to+10°Cwith frequent opening, so store eggs on the middle or lower shelf. - Humidity: Too dry air accelerates the evaporation of moisture If in your refrigerator. function No Frost, wrap the eggs in paper or place in a container with a lid.
- Position: With the blunt end up! This way the yolk remains in the center and does not come into contact with the air chamber, where bacteria can multiply.
- Shelf neighbors: Do not store eggs next to fish, meat or cheeses with a strong odor - the shell absorbs extraneous aromas.
- Packaging: It is better to leave the eggs in the original packaging (it protects from light and shock) or put it in a plastic container with lid.
Optimal temperature +2°...+4°C
Eggs lie with the blunt end up
Packaging is intact, without cracks
No contact with raw meat/fish
Stored on the middle/lower shelf-->
If you bought eggs at the market without packaging, be sure to wash them before storing with warm water and soda (1 tsp per 1 liter) and dry this will remove dirt and some bacteria, but will shorten the shelf life. for 3-5 days.
⚠️ Attention: Never wash eggs directly before storing in the refrigerator - moisture on the shell promotes the growth of microbes. Dry them in air 10-15 minutes before. laying.
How to check the freshness of an egg: 4 reliable methods
Even if the expiration date has not expired, the egg can spoil earlier. Here's how to determine its freshness without risk to health:
- 🥚 Test in water: Place the egg. in a glass of cold water:
- Sinks and lies horizontally - fresh (
1-3 days). - Stands vertically (blunt end down) - edible, but not the first freshness (
7-10 days). - Floats - spoiled (a lot of gases have accumulated in the air chamber).
- Sinks and lies horizontally - fresh (
- 🔍 Transillumination (ovoscoping): Bring the egg to a bright light. A fresh egg will be uniformly light, with a barely visible air chamber. If the chamber is large or dark spots are visible, the egg is old.
- 🕳️ Shaking: Shake the egg near your ear. Do you hear gurgling? This means that the white has become liquid - a sign of long-term storage.
- 🍳 Breaking: The white of a fresh egg is dense and holds its shape, the yolk is convex. spreads, but the yolk is flat - the egg lay longer
2 weeks.
For ovoscopy at home, you can use a flashlight or a special device (ovoscope, costs from 500 ₽). This method is often used by poultry farmers to reject spoiled eggs.
Is it possible to eat eggs after the expiration date?
It all depends on how the eggs were stored and how much the expiration date has been exceeded. According to FBU "Research Institute of Nutrition", chicken eggs in the shell can remain edible until 1 month after the specified date, if:
- ✅ Stored at a stable temperature
+2°...+4°C. - ✅ The shell is not damaged.
- ✅ There is no unpleasant odor when broken.
However, there are important nuances:
- 🚫 Duck and goose eggs you cannot eat expired ones - the risk of salmonella is too high.
- 🍳 Heat treatment required! Prepare soft-boiled or raw eggs (for example, in mayonnaise) only from fresh ones (before
7 days). - 🥞 For baking you can use eggs before
35 daysstorage - high temperatures will kill bacteria.
⚠️ Attention: In Europe i USA expired eggs are disposed of without exception. during 1 week after the expiration date, but only after checking for freshness.
If the egg was stored at room temperature longer 3 days, it is better not to use it - even if the shell is intact. Bacteria multiply exponentially: in one day at +20°C their number can increase by 1000 times.
What to do if were the eggs stored without a refrigerator?
Situation: you bought eggs at the market, and at home you discovered that the refrigerator was broken. How long will they last without refrigeration? The answer depends on the initial freshness and temperature in the room:
| Temperature | Fresh eggs (up to 7 days) | Table eggs (up to 25 days) |
|---|---|---|
| Up to +10°C | Up to 14 days | Up to 7 days |
| +10°...+20°C | Up to 7 days | Up to 3 days |
| Above +20°C | Up to 3 days | Up to 1 day |
If the eggs have been left without refrigeration for longer than the specified period, they can be used only in baking (at a temperature not lower +180°C for 20 minutes).For other dishes the risk is too high.
What to do if the eggs are frozen in the refrigerator?
If eggs accidentally froze (for example, in the freezer), they can be used after complete thawing in the refrigerator (12 hoursHowever, the shell becomes fragile, and the white may lose its structure. Such eggs are not suitable for hard-boiling (the white will be rubbery), but are suitable for omelettes or baking.
In hot regions (for example, in the south of Russia), eggs without a refrigerator spoil in 2-3 times faster. If the temperature in the room exceeds +25°C, the maximum shelf life is 1 day.
Myths and truth about storing eggs
There are many myths around eggs. Let's look at the most popular:
- 🧂 Myth: "Eggs last longer in salt water."
True: Salt water does not extends the shelf life, but helps identify spoiled eggs (they will float faster).
- 🧼 Myth: “Washed eggs last longer.”
True: On the contrary, washing removes the protective cuticle, and the egg spoils faster. In the USA, eggs must be washed, but then coated with mineral oil for protection.
- 🥕 Myth: "Eggs absorb odors, so they cannot be stored with onions."
True: The shell is really porous, but odors penetrate only when long-term contact (more
2 weeks). Short-term proximity is not dangerous. - ❄️ Myth: “Frozen eggs can be stored for years.”
Truth: Eggs can be stored in the freezer for up to
1 year, but only if they are first knocked out of the shell (whole eggs burst when frozen).
Another common myth: “Brown eggs are healthier than white ones.” In fact, the color of the shell depends only on the breed of chicken and does not affect the taste or shelf life. But it matters: small eggs ( size meaning: small eggs (C3) are stored on 2-3 days longer large ones (C0). the shell is thicker.
FAQ: Frequently asked questions about storing eggs
Can eggs be stored in the freezer?
Yes, but only without the shells. Beat the eggs into a container, beat lightly (so that the yolk does not thicken) and freeze in portions. storage - up to 12 months at -18°C. Defrost in the refrigerator.
Why are eggs not stored in the refrigerator in Europe, but here we need to?
In the EU, eggs must be washed and processed factories, so they are stored at room temperature up to 28 days. In Russia, eggs are often sold unwashed (with natural protection), but without a refrigerator they spoil faster due to temperature changes.
How to store poached or boiled eggs?
Boiled eggs are stored in the refrigerator until 7 days (in the shell) or 3 days (peeled, in a container). Poached eggs are best eaten immediately - they spoil in 1-2 days even in the refrigerator.
Is it possible to eat eggs with a crack?
Only if the crack is fresh (appeared at home) and the egg was immediately put in the refrigerator in a closed container. Shelf life - no more. 2 days. If the crack is old or the egg was stored without refrigeration, it is better to throw it away.
Why are eggs not stored in the refrigerator in supermarkets?
Stores are required to store eggs at +5°...+20°C (SanPiN 2.3.2.1324-03). Refrigerators are not used, since frequent temperature fluctuations (when loading/unloading) are more harmful than stable coolness. At home, it is better to play it safe and put the eggs in the refrigerator.