Why is food grade ink required to print on egg shells?

Food grade ink is required to print on egg shells because it's safe for human consumption.

Here's why:

* Direct Contact: Printed ink on egg shells can come into direct contact with the food inside. Regular inks often contain chemicals and pigments that could be toxic if ingested.

* Ingestion: While most people don't eat the egg shells, some may accidentally ingest small pieces of the ink during consumption.

* Safety Regulations: Food safety regulations require food-contact materials to be non-toxic and safe for human health.

Food grade inks are specifically formulated with:

* Non-toxic pigments: These pigments are safe to consume and do not pose health risks.

* Food-safe solvents: These solvents are designed to evaporate or decompose safely, leaving no harmful residues.

* Low migration rates: Food grade inks are designed to have minimal migration of colorants or other ingredients into the food.

In summary, food grade ink is crucial for printing on egg shells to ensure the safety and health of consumers.