Boiling eggshells usually refers to cleaning or preparing eggshells by heating them in water. People do this for a few practical reasons:
🥚 Why people boil eggshells
- Sterilization
- Boiling kills bacteria like Salmonella on the shell surface.
- For calcium powder
- After boiling, shells are dried and ground into a fine powder.
- This is sometimes used as a natural calcium supplement (mainly for animals like chickens, not commonly recommended for humans without medical guidance).
- Compost or gardening use
- Clean shells are added to compost or soil as a slow-release calcium source.
- Removing membrane easily
- Boiling helps separate the inner membrane from the shell for crafts or powdering.
⚠️ Important safety note
- Raw or poorly cleaned eggshells can carry bacteria, so they should always be thoroughly boiled and dried before reuse.
- For human supplements, it’s better to consult a healthcare professional rather than relying on homemade calcium powders.
If you want, I can show a simple safe method to turn eggshells into calcium powder or how to use them in gardening.
