Boiling eggshells is something people do for a few practical reasons, but it depends on what you’re trying to achieve.
🥚 What happens when you boil Eggshells
Eggshells are mainly made of calcium carbonate, and boiling them:
- Sterilizes them (kills bacteria like salmonella)
- Softens any residue
- Makes them safer for reuse in some cases
🧴 Common uses after boiling
🌱 1. Garden fertilizer
- Crushed eggshells add calcium to soil
- Helps plants like tomatoes and peppers
🐔 2. Animal feed supplement (carefully prepared)
- Sometimes used in poultry feed for calcium
- Must be fully cleaned and sterilized first
🧼 3. Natural cleaning powder (less common)
- Ground shells can act as a mild abrasive
🍵 4. Tea or calcium water (traditional use)
- Some people boil shells in water to extract trace calcium
⚠️ Scientific support is limited
⚠️ Important safety notes
- Must be thoroughly washed before boiling
- Raw shells can carry bacteria
- Not a major dietary calcium source in humans (poor absorption compared to food or supplements)
🧠 Bottom line
Boiling eggshells mainly sterilizes them for reuse, especially in gardening or animal feed. It is not a powerful health remedy, despite viral claims.
If you want, I can show you safe ways to reuse eggshells in your home or garden effectively.