How to tell if eggs are bad

Eggs provide plenty of excellent health benefits and are an essential ingredient in many tasty recipes. But nothing is nastier when you open your refrigerator and immediately overwhelm with the rotten smell of sulfur which originates from rotten eggs. The strong smell is the clearest signal that the eggs are bad. What about other ways that can indicate that eggs are already bad before the rotten smell takes over your kitchen? In this article, we will discuss there are other different ways about how to tell if eggs are bad.

When do eggs go bad?

The presence of bacteria inside an egg is responsible for its go bad or rot. However, you can slow down the growth of bacteria by refrigerating eggs below 40-degree Fahrenheit or 4-degree centigrade. Eggs protective shell and enzymes also work in conjunction with refrigeration process. As a result, refrigerated eggs barely go bad as long as they have been stored properly.

However, eggs quality decline over time. It is because the air pocket in an egg grows larger and the yolk and whites become thinner and less springy. Consequently, egg simply dries up instead of going bad.

How to tell eggs good or bad?

Now let’s dive into our main discussion. Below we have discussed five different ways to test eggs including egg float test t ensure that you are eating fresh eggs, getting your money’s worth and avoiding a foul-smelling refrigerator. Grab a cartoon and start experimenting on eggs to learn some interesting egg knowledge.

The sniff tests

The sniff testThe sniff test is the oldest method to tell whether eggs good or bad. On the off chance that you find that your eggs are past their expiration date, with a basic sniff you can keep yourself from discarding it.

Step 1

upon sniffing, eggs that have gone bad will give off a distinct sulfur-like smell. On the off chance that there is no smell, the egg regards eat and don’t falter to scrambling, frying, or soft-boiling your egg.

Step 2

If smelling from outside does not convince you, crack the egg onto a clean plate and give it a sniff. If anything smells simply toss it away.

Step 3

Wash the bowl or plate with hot lathery water before its next time utilize.

The egg in the bowl method or egg float test


The float testThough it is a one-step method, it is quite reliable to check if your egg is edible or not. Egg shells are not completely solid but porous and the liquid inside the egg evaporates over time. The air from outside fills the space of liquid after its evaporation. When more air fills the egg, it floats. Fresher eggs sink in water but old eggs float on the top.


Fill a bowl with cool water and put your egg in the bowl. Now overserve the following things and make inference accordingly:

  • In the event that they sink to the base and lay level on their sides: they are very fresh
  • If they stand on one end at the bottom of the bowl: they are a few weeks old but still good to eat.
  • If they float on the water surface: they lose their freshness for eating.

The shake by your ear test

The shake by ear testThis is quite simple which requires only your ear other than anything.

Step 1

Take an egg close to your ear and shake it.

Step 2

Listen carefully what kind of sound it makes. If you hear a sloshing sound inside the egg, it is highly likely that your eggs have gone bad. But if you hear nothing, it is likely to be fine to eat.

The crack and sniff method

The crack and sniff methodSometimes you cracked an egg into a pan and noticed that it looks different than normal. But ignoring egg condition you go right on cooking. However, the chances are that you are contaminating your system with egg-borne bacteria. In such case, follow below steps to avoid that.

Step 1

crack an egg onto a plate surface for example, on a plate.

Step 2

observe the egg. A fresh egg should have a bright yellow or orange color yolk and white should not spread much. The yolk of an old egg would be flatter and the white would be much funnier.

If the yolk is flatter and runnier, smell the egg. But the egg would smell anything. In such a case, refrain from frying it. Instead, what you can do with the remaining eggs in the container is hard-boiled and eat.

The flashlight test

The flahs light testIn this experiment, you can include your kids too. It may seem unusual at first instant, but flashlight can be used to determine the freshness of eggs.

Step 1

Go into a dim stay with your spotlight. In the past, people used a candle, but for more authentic result use a flashlight or reading light.

Step 2

Hold the flashlight up to the expansive end of the egg. Tilt the egg, and divert it rapidly from left to right. In this process, the contents of an egg should be illuminated.

Step 3

examine the contents of the egg especially whether egg’s air cell is small or large. If the egg is very fresh, the air cell should be thinner than 1/8 inch or 3.175mm. as the egg becoming old, gasses replace water of egg which is lost through evaporation and the air pocket will get larger.

Can you eat eggs after the expiration date?

It is highly likely that you have tossed out more than one carton of eggs based on the dates printed on the package. Unlike meats and herbs, it is difficult to tell whether the egg is bad since it is hidden in a shell. And, also you cannot use your nose and eyes to test egg before you crack it. So many of us rely on the printed date.

It is evident that the quality of eggs starts to decline after a certain date. But still be good to eat for several more weeks based on the condition that they have been refrigerated properly. It is because refrigeration prevents bacterial growth that we have already been mentioned earlier.


An absence of information about how to tell if eggs are awful leads numerous individuals to toss their eggs while they are as yet consumable. The result is wastage of millions of eggs perfectly edible eggs. You can prevent this wastage of food if you test your eggs by our above simple yet effective tests.

Among the five tests we have described, the sniff test is the oldest, simplest and most reliable method of determining whether an egg has gone bad. Eggs that have turned bad will emit an undeniable spoiled Sulfur smell in any case whether they are cooked or uncooked.

We want to finish the article with important health advice regarding eggs. If your eggs pass all of above tests, still you need to cook thoroughly before eating. Because some eggs contain bacteria, for example salmonella which causes food-borne illness. Salmonella can be present even though your eggs smell and look completely normal. So always cook eggs fully before consumption to prevent Salmonella contamination.


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