But did you know that the egg shells are 90% pure calcium? Thus, a mineral vital to the bones, muscles and enzymes health goes in the trash every time.
Let us introduce you how you can use egg shells.
To use your old shell eggs, collect a large amount of them. Then boil them in water for 10 minutes to make sure that there are no bacteria or anything on it.
Let the eggs cool after you cooked them. Thereafter, grind them into powder.
See the video below:
