Clean the House
Ground eggshells make a wonderful (and nontoxic!) abrasive for those tough-to-clean pots, pans, and thermoses. Mix them with a little soapy water for a powerful clean.
Unclog Drains
Keep a few ground eggshells in your kitchen sink strainer. They trap additional solids and when they slowly break down, they will help to naturally clean your pipes on their way out.
Clear Up Skin
Drop an eggshell into a small container of apple cider vinegar and let it soak for a couple of days. Dab the mixture on minor skin irritations or on itchy skin.
Fortify your Pet
Dry eggshells in a 250-degree oven for about 30 minutes. Then put them in a plastic zipper bag, seal it, and crush the shells with a rolling pin until they are a fine powder. Put this into your dog’s food as a great calcium supplement to help its bones and teeth.
Sweeten Coffee
Add some crushed eggshells to ground coffee before brewing it to make it taste less bitter. When you’re done, toss the grounds and shells on your compost heap!