Don't throw those egg shells away! Rinse thoroughly, removing membrane inside, air dry thoroughly and put into a zippered plastic bag. Crush with rolling pin. Store in freezer until ready to add to your garden or compost pile. The crushed egg shells add valuable nutrients to the amended soil. Or save them to form a circle on top of the ground surface around tender plant stems such as peppers, tomatoes, broccoli, cabbage - slugs and cutworms won't cross them.
My compost pile includes eggshells. However you use the egg inside (baking, hard boiled etc) you let the shell air dry. Actually I let pieces dry on egg cartons. Then put them in a zip lock bag and smash them up with a rolling pin.
Questions
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How do I compost eggshells properly so I don't add any disease to my soil? I am new to composting. I do not have organic eggshells to compost. I've read about so many eggs having disease.
If I hardboiled eggs, then I put the eggshells in the compost because the eggshells have been boiled. However, many times I use eggs out of the shells, so I have been washing the eggshells in the dishwater and rinsing them clean after I am done doing the dishes.
What is the appropriate way to handle eggshells for compost use?
I just rinse them out and then crush the shells into small bits before adding them to the compost heap. Crushing them speeds the decomposition.
I hadn't thought of the disease factor, though. No-one has ever got sick from eating anything I've used compost on but we never use anything raw from the garden either. I think if you wash salad veg, and cook other veg thoroughly, anything grown in the compost you should be OK.