Why is there blood in the egg?
The topic of “blood in eggs” has sparked widespread discussion on social media and health forums recently. Many consumers find blood streaks or spots in the egg white or yolk when beating eggs. Is this a normal phenomenon or a food safety issue? This article will analyze this phenomenon from a scientific perspective and attach data on recent hot topics.
1. Why is there blood in the egg?
There are usually two reasons why blood streaks or spots appear in eggs:
1.Blood vessels rupture during ovulation in hens: When an egg is formed, the follicles are expelled from the ovary. If the capillaries in the hen's fallopian tube wall are broken, blood may be mixed into the egg white or yolk, forming blood streaks or blood spots.
2.Early stages of fertilized egg development: If the egg is fertilized, blood spots may form during early embryonic development, but these eggs are not usually marketed.
It is worth noting that this type of eggs does not mean that they are spoiled or harmful, but some consumers may choose to discard them due to psychological reasons.
2. Hot topics on the Internet in the past 10 days and discussions related to egg safety
| keywords | Number of discussions (times) | Main platform | Popular opinions |
|---|---|---|---|
| Eggs have blood | 12,500 | Weibo, Douyin | "Are they bad eggs?" "Can they still be eaten?" |
| food safety | 8,900 | Zhihu, Xiaohongshu | “How to tell if eggs are fresh?” |
| hen health | 5,300 | Agriculture Forum | "The impact of breeding conditions on egg quality" |
| Egg purchase | 7,200 | E-commerce comment area | “Recommended antibiotic-free egg brand” |
3. How to judge whether eggs are safe?
If you find blood streaks or blood spots in the eggs, you can use the following methods to determine their safety:
1.Observe smell and status: Spoiled eggs will have a pungent sulfur smell and the egg white will be turbid.
2.Check shelf life: Pay attention to the production date when purchasing. The shelf life of eggs at room temperature is about 15-30 days.
3.Cook thoroughly: Sufficient heating can kill potential bacteria. It is recommended to avoid raw food.
4. Expert opinions and consumer misunderstandings
Agricultural experts pointed out that the blood streaks in eggs are related to the breed, health condition and stress response of the hens, and are not caused by drug residues or contamination. However, some consumers mistakenly believe that this is the result of "hormone eggs" or "artificial intervention", and more scientific knowledge needs to be strengthened.
5. Recent hot topics: other controversies in the egg industry
| topic | heat index | focus of controversy |
|---|---|---|
| “Sterile Egg” Marketing | 6,800 | Is it really sterile? |
| Free range eggs vs regular eggs | 9,200 | Differences in nutritional value |
| Egg price fluctuations | 4,500 | Reasons for recent price increases |
Summary
The appearance of blood streaks in eggs is a natural phenomenon and usually does not affect the safety of consumption, but consumers can choose a treatment method based on personal acceptance. It is recommended to choose formal channels when purchasing and store in a refrigerated environment. At the same time, the industry needs to further standardize information transparency and reduce public misunderstandings.
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