How long can an egg last in the fridge: expiration dates, checking freshness and safety rules

Eggs are one of the most versatile products in the kitchen, but their shelf life often raises questions. Especially when it comes to storing them in the refrigerator: some claim that they spoil in a week, others store them for months without consequences. So where is the truth? In fact, the shelf life of eggs depends on several factors: the type of processing (washed or not), storage temperature, shell integrity, and even the breed of chicken. In this article we will analyze official GOST standardsscientific research and practical advice so that you know exactly how long you can store eggs without risk to health.

It is important to understand that the refrigerator only slows down spoilage, but does not stop it completely. Over time, biochemical changes occur in the egg: the white liquefies, the yolk flattens, and the protective shell under the shell becomes thinner. This opens the way for bacteria, including Salmonella the main cause of food poisoning. We will tell you how to recognize a spoiled egg even without a date on the package, and what to do if you doubt its freshness.

Official shelf life of eggs according to GOST and SanPiN

In Russia, the shelf life of eggs is regulated by GOST 31654-2012 i SanPiN 2.3.2.1324-03. These documents divide eggs into two categories according to the processing method:

• 🥚 Diet eggs (labeling D) - unprocessed, with a deadline storage no more than 7 days at a temperature of 0°C to +20°C. They cannot be washed or cooled below zero.
• 🥚 Table eggs (labeling C) - can be stored up to 25 days at room temperature and up to 90 days in the refrigerator (at +2°...+4°C).

An important nuance: these standards apply to unwashed eggs with intact shells. If the egg is washed (even with water), the protective layer (cuticle) is washed off, and the shelf life is reduced to 12-14 days in the refrigerator. This is why eggs are often sold in supermarkets labeled “washed” - they need to be consumed faster.

⚠️ Attention: In the EU and the USA, eggs must be washed and disinfected before sale, so their shelf life in the refrigerator usually does not exceed 4-5 weeksIn Russia, washed eggs are less common, but always check the labeling. packaging.

How to properly store eggs in the refrigerator: 5 keys rules

Even if you bought eggs with a shelf life reserve, improper storage can reduce their freshness several times. Here is what is really important:

1. Temperature: The optimal range is +2°...+4°C. The refrigerator door is the worst place: when opened, the temperature there fluctuates from +8°C to +15°C. which speeds up spoilage. It is better to use a shelf closer to the back wall.
2. Humidity: Too dry air (below 70%) leads to evaporation of moisture through the shell, causing the protein to become watery. system No Frost humidity is often below normal - in this case, store eggs in a closed container.
3. Position: The blunt end of the egg should be directed upThis prevents the yolk from moving and prolongs freshness.
4. Packaging: Cardboard trays are better than plastic ones - they absorb excess moisture and protect from foreign odors. Do not store eggs in plastic bags!
5. Refrigerator neighbors: Eggs. easily absorb odors. Keep them away from fish, onions, garlic and spices. Ideally, in a separate airtight container.

If you buy eggs at the market from private sellers, be sure to check the date of laying. Such eggs are often not marked and may be older than they seem. reduce by 30% from the standard.

Optimal temperature: +2°...+4°C

Humidity in the refrigerator: 70-80%

Eggs are stored with the blunt end up

Use original packaging or sealed container

No proximity to strong-smelling foods-->

How to check the freshness of an egg without a date: 4 working methods

The date on the package is not always a guarantee of freshness. Here's how to determine whether an egg is edible, even if you forgot when you bought it:

1. Test in a glass of water

Pour cold water into a glass and carefully lower the egg:

• 🥚 Sinks and lies on its side - fresh (1-7 days).
• 🥚 Stands vertically on the bottom - edible, but not the first freshness (7-14 days). Suitable for baking or omelettes.
• 🥚 Floats - it is spoiled. Gases (hydrogen sulfide) have accumulated inside and must be thrown away.

2. (ovoscoping)

Bring the egg to a bright light source (you can use a phone flashlight). Inside the fresh egg you will see:

• 🔦 A dense, barely noticeable yolk in the center.
• 🔦 Congratulations, if the white is cloudy - this is a sign of freshness! about aging.

If dark spots or blood clots are visible inside, the egg is spoiled. Also a dangerous sign is movable yolkthat “dangles” when the egg is rotated.

3. data-i="149">Bring the egg to your ear and shake. If you hear something “gurgling” or shimmering inside, the egg is old. The contents of a fresh egg are dense and there will be no sound.

Bring the egg to your ear and shake. If you can hear something “gurgling” or shimmering inside, the egg is old. In a fresh egg, the contents are dense and there will be no sounds.

4. Breaking into a plate

This is an extreme method, but the most accurate. data-i="152">🍳 Convex, elastic yolk that does not spread.

• 🍳 Convex, elastic yolk that does not blur.
• 🍳 Dense white that does not spread immediately.

If the yolk is flat and the white is liquid like water, such eggs can only be used in baking after careful heat treatment.

Can eggs be eaten after the expiration date?

The answer depends on how long it is. the egg is expired and how it was stored. Here are clear recommendations:

• 📅 Overdue by 1-3 days: If the egg was stored in the refrigerator at +4°C and passed the freshness test (sinks in water, the protein is dense) - it can be consumed after mandatory heat treatment (cooking for at least 10 minutes, frying on both sides).
• 📅 Expired by 4-7 days: Only for baking (pies, muffins), where eggs are subjected to prolonged heating. Eating raw (egnog, mayonnaise) is dangerous!
• 📅 Overdue by more than 7 days: Throw away without a doubt. The risk of salmonellosis and other infections exceeds any savings.

Particular care must be taken with raw eggs in dishes. For example, for homemade mayonnaise or tiramisu, use only the freshest eggs (no older than 3 days), previously washed in warm water with soda (1 teaspoon of soda per 1 liter of water).

⚠️ Attention: Children, pregnant women and people those with weakened immune systems should avoid any dishes with raw or insufficiently processed eggs, even if they look fresh. Salmonellosis in these groups is especially severe.

What is salmonellosis and how is it related to eggs?

Salmonellosis is an acute intestinal disease caused by bacteria of the genus Salmonella. They can be on the shell or inside the egg (if the chicken has been infected). Symptoms appear 6-72 hours after eating the contaminated product: vomiting, diarrhea, fever up to 39°C, headache. In severe cases, hospitalization is required. Eggs are one of the main sources of infection, so they should always be washed before use and heat-treated.

What. what to do with cracked or broken eggs?

A cracked shell is a direct path for bacteria. But do not rush to throw away such an egg: it can be saved if you act quickly.

If the egg is cracked, but the contents have not leaked out:

1. Prepare a solution: 1 tablespoon of salt per 1 liter of water.
2. Dip the egg in the solution for 10 minutes - the salt will kill some of the bacteria on the shell.
3. Take it out, dry with a paper towel and place in an airtight container.
4. Store in refrigerator no more than 2 days and use only for heat-treated dishes.

If the egg is completely broken:

• 🍳 Pour the contents into a clean jar with a lid.
• 🍳 Store in the refrigerator for no more than 1 day.
• 🍳 Before use, check the smell - the slightest hydrogen sulfide (rotten) aroma means that the egg is spoiled.

Never store broken eggs in a metal container - this speeds up the process oxidation and spoilage. Glass or plastic with a tight lid is the best choice.

Is it possible to freeze eggs and how to do it correctly?

Freezing extends the shelf life of eggs up to 12 months, but only if you follow the rules. data-i="194">. Whole eggs in the shell cannot be frozen - they will burst due to expansion of the liquid. only the contents without the shell are sent to the freezer. Whole eggs in their shells cannot be frozen - they will burst due to the expansion of the liquid.

Step-by-step instructions:

1. Break the egg into a bowl, carefully mix the white and yolk (or freeze them separately).
2. Add 1/8 tsp salt or 1 tsp sugar per 250 ml of egg mass - this will prevent separation during defrosting.
3. Pour into portioned containers or ice trays (convenient for baking).
4. Close tightly and place in the freezer (-18°C or below).

Thawed eggs are used only for heat-treated dishes (omelettes, pastries, sauces). They cannot be whipped into foam for meringues or meringues - the structure of the protein is broken.

Common mistakes when storing eggs: what shortens their shelf life?

Even experienced housewives sometimes make mistakes that cause eggs to spoil ahead of schedule. common:

• 🚫 Washing before storage: The protective cuticle is washed off, and bacteria penetrate inside 10 times faster. You need to wash the eggs immediately before use.
• 🚫 Storage in the refrigerator door: The temperature there is unstable, which speeds up spoilage.
• 🚫 Use of plastic trays from the supermarket: They are not airtight and allow odors to pass through. Cardboard or glass are the best option.
• 🚫 Storage next to fruit: Some fruits (apples, bananas) emit ethylene, a gas that accelerates spoilage. eggs.
• 🚫 Ignoring cracks: Even a microcrack reduces the shelf life to 2 days.

Another mistake is to believe the inscription “extra” or “select” on the packaging. These categories indicate the size and. the weight of the egg (GOST 31654-2012), but not about the shelf life. For example, an egg of category O (selected, 65-75 g) spoils as quickly as category 1 (55-65 g) or 2 (45-55 d).

FAQ: Answers to frequently asked questions about storing eggs

Can eggs be stored at room temperature?

Yes, but only unwashed table eggs (marking C) and no longer 25 days at temperatures up to +20°C. In hot regions (above +25°C) the period is reduced to 10 days. Diet eggs (D) cannot be stored at room temperature - only in the refrigerator.

Why in Europe they don’t store eggs in the refrigerator, but here they recommend it?

In the EU, eggs are necessarily washed and disinfected in production, so they last longer at room temperature (up to 21 days). In Russia, most eggs are sold unwashed, and their protective layer is preserved only at room temperature. storage in the refrigerator. In addition, in Europe, the temperature in stores and in transport is more strictly controlled.

How to store eggs if the power is turned off and the refrigerator is not working?

If there is a power outage, eggs will remain fresh if the refrigerator is not working. open. If the light is turned off for a longer period: 4 hours eggs will remain fresh if the refrigerator is not opened. If the lights are turned off for a longer period:

1. Move the eggs to the coolest place in the house (for example, a pantry or balcony in winter).
2. Wrap each copy with a paper towel - this will slow down the evaporation of moisture.
3. Use them first of all, starting with the oldest ones.

At temperatures above +25°C eggs are stored no more than 3 days.

Is it possible to store boiled eggs in the shell?

Yes, but not longer 3-4 days in the refrigerator. Hard-boiled eggs spoil faster than raw ones due to the destruction of the protective shell during cooking. Store them in an airtight container, after cooling them, soft-boiled or "bagged" eggs should be eaten within 2. days.

Why sometimes there is a blood spot in a fresh egg?

Blood inclusions (or “meat spots”) are a consequence of a ruptured blood vessel in the chicken’s oviduct. They are not dangerous to health and do not affect the taste, but it is better not to use such eggs in dishes where an aesthetic appearance is required (for example, poached spots become visible when cooked). gray or greenish.