Stop Throwing Eggshells Away: How Boiled Eggshells Can Be Useful

Most people crack open eggs, use the inside, and toss the shells straight into the garbage without a second thought. However, a growing number of health, gardening and household tips sites are highlighting that eggshells — especially boiled ones — may have a range of practical uses around the home. These potential benefits include nutritional and environmental advantages when reused responsibly.

Eggshells are made mostly of calcium carbonate, a mineral also found in limestone and chalk. Calcium is an essential nutrient for both human health and plant growth, and using eggshells strategically may help capture some of that value instead of sending it to waste.