- Spread the shells on a clean baking sheet and dry them thoroughly.
- Grind them finely: Use a clean grinder or mortar and pestle to produce a very fine powder.
- Store appropriately: Keep the powder in a clean, dry, airtight container.
- Be mindful of dosage: Eggshell powder is highly concentrated in calcium, so avoid assuming that more is better.
The exact calcium content of homemade eggshell powder can vary considerably, making precise dosing difficult.
For people who actually need calcium supplementation, a quality-controlled commercial supplement may be easier and safer to
