How to Choose Food Packaging Boxes? GB 4806 Compliance Checklist + 5 Violation Cases

Last year, a client sent us an inspection report from a market regulation authority, asking us to help her handle an urgent issue.

Her food gift box had just been on the shelf for one month and was found to have excessive ink migration—in specific terms, the red ink from the inner pattern of the gift box migrated to the simulated food after 24 hours of simulated food contact, reaching 18 mg/dm², which is 3.6 times the GB 4806.7 standard (5 mg/dm²).

The consequences were: the entire batch of 12,000 gift boxes had to be recalled, resulting in a loss of 270,000, plus a regulatory penalty of 80,000, and a three-month ban on launching new products. She had only originally wanted to create a "beautiful food gift box"—she never expected to run aground on the regulatory hurdle.

The first step in selecting food packaging is not choosing the box style, not choosing the material, and not choosing the process—it is passing regulatory compliance. This article provides a thorough explanation of the GB 4806 series compliance checklist, essential testing items, violation cases, and how to discuss this matter with suppliers.

GB 4806 Three-Category Standards Comparison Table

The GB 4806 series is a national mandatory standard, **all packaging materials in contact with food must comply with it**. Categorized by material type:

**Key Determination**:

• If your packaging is **white cardboard box + built-in plastic sealing bag** — the cardboard portion must comply with GB 4806.8, and the sealing bag must comply with GB 4806.7
• If your packaging is **plastic box + printing** — the plastic must comply with GB 4806.7, and the ink must comply with GB 4806.10 (coating category)
• If your packaging is **aluminum foil bag + ink printing** — the aluminum foil must comply with GB 4806.9 (metal category), and the ink must comply with GB 4806.10

5 Essential Testing Reports

A compliant food packaging supplier should provide these 5 reports:

1. GB 4806 Series Testing Report — the report issued according to the applicable standard for your packaging material type
2. Supplier Qualifications (QS/SC Certification) — proving the printing house is capable of producing food-grade packaging
3. Raw Material Compliance Certificates for Inks / Adhesives / Paper — compliance of upstream suppliers
4. Production Environment Testing Report — workshop cleanliness, temperature and humidity control
5. Batch Testing Report — sampling test results for each shipment batch

**5 Questions Buyers Must Ask the Printing House**:
1. Which ink supplier do you use? Do they hold food-grade certification?
2. What cleanliness grade is your production workshop for this order?
3. Will food-grade inks be used on the inner contact surface (inside the box/sealed bag)?
4. Can you provide our migration testing report?
5. What is your compensation policy if a sampling test fails?

6 Real Violation Cases (Desensitized)

These are food packaging violation cases compiled from publicly available regulatory information. **All information has been desensitized**—however, every violation reason carries a warning significance for buyers:

Case 1: Excessive Ink Migration from Interior Patterns of Gift Box

**Reason**: The printer used ordinary four-color ink to print interior patterns, without food-grade ink.
**Consequence**: 12,000 gift boxes recalled, loss of 270,000 + penalty of 80,000.
**Lesson**: The interior of gift boxes (in contact with food) must use food-grade ink or add a protective film.

Case 2: Excessive Formaldehyde in Box Liner Paper

**Reason**: The printer used ordinary corrugated paper as box liner paper, without conducting formaldehyde testing.
**Consequence**: 8,000 gift boxes recalled, loss of 140,000.
**Lesson**: Box liner paper / inner trays must comply with GB 4806.8 formaldehyde ≤ 1 mg/kg standard.

Case 3: Solvent Residue in Plastic Sealed Bags

**Reason**: During plastic sealed bag production, solvents were not fully volatilized before sealing, and residual solvents migrated to food.
**Consequence**: Failed regulatory sampling inspection, 30,000 units recalled.
**Lesson**: Sealed bags require a "secondary ventilation" process; request solvent residue test reports.

Case 4: Heavy Metal Migration from Hot Stamping Process

**Reason**: The printer used ordinary hot stamping foil (containing copper alloy), and metal migrated when the hot-stamped surface contacted food.
**Consequence**: 4,500 gift boxes recalled.
**Lesson**: Interior hot-stamped surfaces must use food-grade hot stamping foil (containing pure gold foil or metal-free foil).

Case 5: Excessive Fluorescent Whitening Agents

**Reason**: White cardboard raw materials contained fluorescent whitening agents (to increase whiteness), but GB 4806.8 prohibits them.
**Consequence**: Failed regulatory sampling inspection.
**Lesson**: White cardboard suppliers must provide "fluorescent whitening agent-free" certification.

Case 6: Packaging Falsely Labeled "Food-Grade"

**Reason**: The printer promised "food-grade ink" in the contract, but the printer actually could not provide a GB 4806 test report.
**Consequence**: Liability dispute after sampling inspection, loss borne by the buyer.
**Lesson**: Contract terms must clearly state "provide third-party test reports"; do not easily trust the printer's verbal promises.

5-Step Decision Process for Food Packaging Selection

1. Determine the material type — paper / plastic / metal / composite. This determines which section of GB 4806 applies.
2. Determine the food contact surface — which surfaces will contact food (inner side / sealed bag / direct contact). Only the contact surfaces require food-grade compliance.
3. Request third-party test reports — do not accept the printer's own reports. Require reports from third-party agencies such as SGS / CTI / China Certification & Inspection Group.
4. Confirm the test items — migration levels, heavy metals, formaldehyde, fluorescent brighteners, solvent residues, etc.
5. Batch verification — sampling inspection must be conducted before each shipment, with records kept on file.

After reading this, you should be able to:

• ✅ Understand that the first step in food packaging is regulatory compliance, not choosing a box style
• ✅ Request the 5 required testing reports
• ✅ Not be misled by sales tactics when discussing "food-grade" with printers

If the food gift box you want to make has not yet passed GB 4806 testing—refer to the cosmetics packaging customization process, or directly contact a LeXiang Packaging consultant, **and receive a GB 4806 testing plan + printer recommendations within 24 hours**.