2. It was not cleaned and the membrane in the eggshell was not removed. It is directly dried into powder.
Crushed eggshells must be dried, because there is still egg white residue, which is wet and cannot be ground.
4. Eggshell powder can be directly buried in the soil or fermented with kitchen waste to make fertilizer.
The whole eggshell is put in a flowerpot or vegetable field, and the effect is very bad. In addition, there is no guarantee that the yolk and egg white are clean when you beat eggs. There are often residual egg whites on eggshells. When used in soil, it is easy to burn the roots, which is similar to the harm of immature organic fertilizer. In addition to burning the roots, it will also bring in eggs and endanger the roots of crops, so eggshells must be treated before they can be used.
The content of this article comes from: Animal Welfare and Meat Production by China Agricultural Publishing House.