Don’t toss those eggshells! After boiling or baking them to sterilize, these calcium-rich shells transform into a surprisingly versatile household staple. From garden booster to natural cleaner, boiled eggshells are a zero-waste hero hiding in your kitchen.
Here’s how to safely prepare and use them—backed by tradition and practical wisdom.
How to Sterilize Eggshells (Essential First Step)
Why boil? Raw eggshells can carry bacteria like Salmonella. Boiling (or baking) makes them safe for reuse.
Method 1: Boiling (Best for Most Uses)
- Rinse used eggshells to remove membrane.
- Place in a pot, cover with water.
- Bring to a boil, then simmer 10–15 minutes.
- Drain, spread on a tray, and air-dry completely (or bake at 200°F for 20 mins to speed drying).
- Store in a jar until ready to use.
