Metal water cups - China GB4806 Food Contact Materials Report
Date：2026-09-02 09:28:20 Classification
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Metal Water Cup GB4806 Food Contact Material Test Report Explanation
I. Core Standard Basis
Metal water cups (used for holding drinking water or beverages) are typical food contact materials. The main testing standards are:
GB4806.9-2016 "National Food Safety Standard - Metal Materials and Articles for Food Contact" – Core Standard
GB4806.7-2016 "Plastic Materials and Articles for Food Contact" (if containing plastic parts, such as lids and sealing rings)
GB4806.8-2016 "Paper and Paperboard Materials and Articles for Food Contact" (if containing paper labels)
II. Main Test Items
| Test Category | Specific Item | Limit Requirements
| Sensory Testing | Color, Odor | Migration Immersion solution: No off-odor, turbidity, or sediment
| Heavy Metal Migration | Lead (Pb), Arsenic (As), Cadmium (Cd), Chromium (Cr), Nickel (Ni), Antimony (Sb), Copper (Cu), Zinc (Zn), etc. | Strictly meets limit requirements
| Alloying Element Migration | Specific Elements such as Cobalt (Co), Vanadium (V), and Molybdenum (Mo) | Corresponding to Basic Material Type
| Special Requirements for Stainless Steel | Martensitic Steel Should Not Contact Food | 304/316 Austenitic Steel is Commonly Used
| Additive Requirements | Internal Coatings, Surface Treatment Agents | Complies with GB4806.1 basic standard
III. Testing Process
Step 1: Preliminary Preparation
Confirm product material (stainless steel, aluminum alloy, titanium alloy, etc.)
Prepare finished product samples (usually 3-5 finished product samples are required for each material)
Provide product formula information
Step 2: Laboratory Testing
Migration Test: Simulate contact using food-grade simulants (e.g., 4% acetic acid, 10% ethanol, distilled water, etc.)
Condition Setting: Set temperature and time according to actual usage scenario (e.g., 70℃/2 hours)
Heavy Metal Analysis: Quantitative analysis using instruments such as ICP-MS and ICP-OES
Step 3: Report Issuance
Testing Cycle: Approximately 5-7 working days
Report Validity: Usually 6 years (assuming the standard is not updated)
IV. Special Requirements for Different Metal Materials
Stainless Steel Water Cup (Most Common)
Main Material: Usually 304 (06Cr19Ni10) or 316 (06Cr17Ni12Mo2)
Key Focus: Lead, Chromium, and Nickel Migration
Labels should indicate material type (e.g., "304 Stainless Steel for Food Contact")
Titanium Alloy Water Cups
A Recent Rising Health Material
Key Focus: Background Value of Titanium and Migration of Alloy Elements
Aluminum Alloy Water Cups
Inner wall must have a coating (to prevent aluminum migration)
Key Focus: Coating integrity
Enamel/Coated Metal Cups
Compliant with GB4806.3 "Enamel Products for Food Contact" or GB4806.9
Pay attention to coating leachings
V. Core Application Scenarios of the Report
1. E-commerce Platform Entry: Requirements for food-related products on platforms such as Tmall, JD.com, and Douyin
2. Market Supervision and Spot Checks: Compliance inspections by market supervision departments
3. Import and Export Registration: Product export or brand registration
5. Supermarket Shelf Listing: Offline Sales Receipts
VI. Key Considerations
Sample Authenticity: The tested sample must be consistent with the actual product sold, including welding process and coating type.
Overall Principle: All accessories of the metal cup, such as the plastic lid, sealing ring, and silicone gasket, must be tested separately.
Quantity Submitted: It is recommended to prepare 2-3 times the actual required samples to avoid delays due to retesting.
Institutional Qualification: A third-party testing institution with CMA + CNAS accreditation must be selected (Dezewei Testing CNAS Registration No.: L8083).
Cost Reference: The cost of a single metal test is approximately 800-2000 RMB.
VII. Practical Suggestions for Enterprises
For companies preparing to list or export metal water cups, it is recommended to:
1. Use food-grade materials that meet standards during the design phase.
2. Obtain material certification documents from the supplier.
3. Complete full-item testing before the first batch of mass production.
4. Retain test reports for each batch for future reference.
5. Pay attention to updates to national standards and conduct timely retesting.
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