Eggshells are often thrown away, but many people believe they can be reused as a natural source of calcium. Some health enthusiasts claim that boiling eggshells and turning them into powder may support bone health, strengthen nails, and improve overall wellness. While eggshells do contain calcium, it’s important to understand both the potential benefits and the safety concerns before trying this home remedy.
Prep Time
- Prep Time: 10 minutes
- Boiling Time: 10 minutes
- Drying Time: 30 minutes
- Total Time: 50 minutes
Equipment
- Saucepan
- Baking sheet
- Blender, grinder, or mortar and pestle
- Fine mesh strainer
- Airtight container
Ingredients
- Eggshells from 6–12 eggs
- Water
Ingredient Notes
- Eggshells: Eggshells are primarily made of calcium carbonate, which is a common form of calcium found in supplements.
- Boiling Water: Helps clean and sanitize the shells before use.
Instructions
Step 1: Clean the Eggshells
- Rinse eggshells thoroughly under warm water to remove any egg residue.
- Remove the thin inner membrane if possible.
Step 2: Boil the Shells
- Place eggshells in a saucepan and cover with water.
- Boil for 10 minutes to help kill bacteria.
Step 3: Dry the Eggshells
- Drain the shells and spread them on a baking sheet.
- Bake at 200°F (95°C) for about 20–30 minutes until completely dry.
Step 4: Grind Into Powder
- Blend or grind the dried shells into a very fine powder.
- Store in an airtight container.
Step 5: Use Carefully
- Some people add a tiny pinch to smoothies or foods, but moderation is important.
Important Safety Information
- Eggshell powder is not a guaranteed medical treatment for any disease or deficiency.
- Sharp or poorly ground eggshell particles may irritate the throat or digestive tract.
- Too much calcium can cause health problems, including kidney stones.
- Always speak with a healthcare professional before using homemade calcium remedies regularly, especially if you have medical conditions or take supplements.
Potential Benefits
- Natural calcium source
- Reduces kitchen waste
- May support bone and teeth health when used safely
Tips
- Grind the shells as finely as possible to avoid sharp particles.
- Do not consume large amounts.
- Store the powder in a dry, sealed container.
- Use clean, properly cooked eggshells only.
Variations
- Garden Use: Crushed eggshells can enrich garden soil with calcium.
- Compost Addition: Add shells to compost piles for natural minerals.
- Natural Cleaner: Eggshell powder can be mixed with baking soda for scrubbing pots and pans.