How to tell if an egg is bad or not?
Eggs are a common ingredient in daily life, but how to judge whether the eggs are fresh or have gone bad is a headache. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed judgment method and help you quickly master the skills through structured data.
1. How to judge the freshness of eggs
You can use the following methods to determine whether eggs are fresh or spoiled:
| method | Operation steps | Judgment criteria |
|---|---|---|
| water float method | Place the eggs in a bowl filled with water | Fresh eggs will sink to the bottom; stale eggs will float or float |
| shaking method | Shake the eggs gently | Fresh eggs make no sound; spoiled eggs will make a shaking sound. |
| Illumination method | Shine bright light on eggs | Fresh eggs have uniform light transmission; spoiled eggs have dark spots or turbidity |
| Olfactory method | Smell the eggs after breaking them | Fresh eggs have no peculiar smell; spoiled eggs have a sulfurous or rancid smell. |
2. Egg storage period and status comparison table
The shelf life of eggs is closely related to their state. The following is the storage time of eggs in common states:
| save state | Refrigerated storage time | Room temperature storage time |
|---|---|---|
| Fresh eggs (not washed) | 4-5 weeks | 1-2 weeks |
| washed eggs | 2-3 weeks | Not recommended for storage at room temperature |
| Hard-boiled eggs (in shell) | 1 week | 2-3 days |
| beaten egg liquid | 2-3 days | Not recommended for storage at room temperature |
3. Common symptoms of egg spoilage
If the eggs appear to have the following conditions, they are likely to have gone bad and are not recommended for consumption:
1.Abnormal color:The egg white or yolk is green, black, or speckled.
2.Abnormal smell:There is an obvious rancid smell or sulfur smell after opening.
3.Texture changes:The egg white becomes thin and watery, or the yolk loses its elasticity.
4.Shell exception:The shell appears cracked, moldy, or feels sticky.
4. How to extend the shelf life of eggs
To keep eggs fresher for longer, here are some things you can do:
1.Refrigerated storage:Place the eggs in the refrigerator compartment and keep the temperature below 4°C.
2.Avoid cleaning:There is a natural protective film on the surface of eggs. Cleaning will destroy this film and accelerate deterioration.
3.Store tip down:Placing eggs point-side down will keep them fresh longer.
4.Keep sealed:Place eggs in an airtight container to avoid absorbing odors from other foods.
5. Common misunderstandings and answers
Regarding the judgment and storage of eggs, there are some misunderstandings on the Internet. The following are answers to frequently asked questions:
1.Misunderstanding:The darker the egg shell, the more nutritious it is.
Answer:Eggshell color has nothing to do with nutrition and depends on the breed of chicken.
2.Misunderstanding:The egg must be broken if it floats.
Answer:Floating eggs may just be stale, but not necessarily completely spoiled. This needs to be judged in conjunction with other methods.
3.Misunderstanding:Eggs can be refrigerated indefinitely.
Answer:Even if refrigerated, eggs will gradually deteriorate and are recommended to be consumed within the shelf life.
Conclusion
Through the above methods and data, you can easily determine whether the eggs are fresh or spoiled. Remember, fresh eggs not only taste better, but also have higher nutritional value. Hopefully this article will help you better preserve and eat eggs and avoid waste and health risks.
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