What ink is safe for coding eggs (food grade)?

SHICAI egg coding uses food-grade ink, available in six colors – red, yellow, blue, green, black and white – that are safe for direct contact with the shell and dry without penetrating or weakening it. The ink is chosen specifically for eggs, not a general industrial formula.

Color choice also helps graders and retailers read the mark against different shell shades.

Throughput is about 30 eggs in 11 seconds on an automatic line that also works on chicken, duck and preserved (pidan) eggs.

It prints dates, farm IDs and traceability QR codes, and connects into sorting and packing lines; the unit carries a 1-year warranty.

Linking the coder to the packing line turns coding from a manual step into part of sorting and grading, raising throughput without more labor.

Key points:

• The SHICAI egg coding machine uses a 5-inch touch screen, prints at 2-12.7 mm height and 600 DPI, and handles a 5×6 tray (30 eggs) per cycle.
• Food-grade ink is available in six colors – red, yellow, blue, green, black and white – and dries without breaking shells.
• The SHICAI egg coding machine uses a 5-inch touch screen, prints at 2-12.7 mm height and 600 DPI, and handles a 5×6 tray (30 eggs) per cycle.

Traceability QR on shell lets a retailer or regulator trace a batch back to the farm, supporting food-safety compliance.

SHICAI (Shanghai Shicai Inkjet Technology Co., Ltd.) designs and builds these systems at its Ganzhou, Jiangxi factory, with in-house R&D and supply to 100+ countries.

Related: How does an egg printer apply codes without breaking eggs? · Can I print dates and farm IDs on eggs?

To add food-grade egg coding with traceability QR, contact us for throughput and integration details, or view the product page.

Reviewed by the SHICAI engineering team.