# Safety of blood spots in egg yolks

> Live situation record from CLSTR: https://clstr.news/situations/safety-of-blood-spots-in-egg-yolks
> Updated: 2026-08-19T07:38:28.000Z. Sources: 3. Developments: 2.

Information regarding red or brown spots in egg yolks indicates that these inclusions are harmless blood or tissue traces from the hen that enter the yolk during the natural egg-forming process. These spots do not signify embryo development or issues with food safety, nutritional value, or animal health.

In Sweden, it is noted that such spots occur when a tiny blood vessel in the hen’s ovary or oviduct ruptures. These are more common in fresh, farm-produced eggs, as industrial sorting equipment typically removes them before packaging. 

In Germany, these inclusions, sometimes referred to as ‘Hahnentritt’, are particularly common in older laying hens. Data from 2025 shows that German companies produced over 13.7 billion eggs, with approximately 15 percent of total production containing such small inclusions. Consumers can safely consume these eggs by removing the discoloration with a spoon or knife before preparation.

## Claims

- German companies produced over 13.7 billion eggs in 2025. (corroborated by 3 sources)
- Red or brown spots in egg yolks, known as 'Hahnentritt', occur more frequently in older laying hens. (corroborated by 3 sources)
- Red or brown spots in egg yolks are not signs of a fertilized embryo or a developing chick. (corroborated by 3 sources)
- Approximately 15 percent of total egg production contains these small inclusions. (corroborated by 3 sources)
- The presence of spots is not dependent on the color of the eggshell. (corroborated by 3 sources)
- Red or brown spots in yolks do not indicate poor animal health or low housing quality. (corroborated by 3 sources)

## Timeline

### 2026-08-19: Egg yolk spots explained: Safety of red or brown inclusions

Red or brown spots in egg yolks, known as 'Hahnentritt', are harmless traces of blood or tissue and do not indicate fertilized embryos or poor animal health.

3 sources. https://clstr.news/cluster/egg-yolk-spots-explained-safety-of-red-or-brown-inclusions

### 2026-08-02: Red Spot in Egg Explained: Harmless Blood Spot

Red dots in eggs are harmless blood spots from a ruptured vessel, not embryos, and are safe to eat after cooking.

2 sources. https://clstr.news/cluster/red-spot-in-egg-explained-harmless-blood-spot

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Cite as: Safety of blood spots in egg yolks. CLSTR, https://clstr.news/situations/safety-of-blood-spots-in-egg-yolks