That headline is usually talking about eggshell reuse, especially in gardening and home uses.
Here’s what it’s getting at:
🥚 Why people boil eggshells
Boiling eggshells helps:
- Sterilize them (removes bacteria like Salmonella)
- Soften membranes so they break down faster later
- Make them safer for soil or compost use
🌱 Common “don’t throw them away” uses
1. Natural calcium fertilizer
Crushed eggshells slowly release calcium into soil, which can help:
- Prevent blossom-end rot in tomatoes and peppers
- Improve overall soil health over time
2. Compost booster
They add minerals to compost and improve its nutrient balance.
3. Pest deterrent (limited evidence)
Crushed sharp pieces are sometimes used around plants to discourage slugs and snails—though this is not always very effective.
4. Seedling starter cups
Halved eggshells can be used as tiny biodegradable pots.
⚠️ Important reality check
- Eggshelss break down very slowly unless crushed finely
- They are a supplement, not a replacement for proper fertilizer
- Boiling isn’t required, but it can help hygiene and breakdown
If you want, I can tell you the best way to prepare eggshell powder for plants or whether it actually works for tomatoes (that’s the most popular claim).
