Rice cooker China GB4806 food contact material testing and processing
Date：2025-08-15 10:01:03 Classification
：【question】 Visits：
According to the Chinese national standard GB4806 series, rice cookers, as electrical appliances that come into direct contact with food, must undergo mandatory testing for their food contact components. The following is the specific process and key points:
I. Core Components Tested for Rice Cookers and Applicable Standards
| Components | Key Testing Items
| Inner Pot | Chemical Composition, Mechanical Properties, Heavy Metal Migration (Lead, Cadmium)
| Non-stick Coating | Total Migration, Specific Migration (e.g., ammonium perfluorooctanoate)
| Steaming Rack/Measuring Cup | Total Migration, Potassium Permanganate Consumption, Heavy Metal Leaching
| Rice Spoon/Accessories | Abrasion Resistance, Temperature Resistance, Migration Testing
> Note:
> - Components intended for high-temperature use (e.g., inner pot) require additional high-temperature migration testing (simulating a cooking environment above 100°C).
> - Products intended for infants and young children (e.g., rice cooker accessories) require additional testing for bisphenol A (BPA) residues.
II. The Complete Testing Process (6 Steps)
1. Select a Testing Agency
- Requires CMA (China Metrology Accreditation Service) and CNAS (National Accreditation Service) certification.
- Recommended agencies: Shenzhen Dezewei Testing, etc.
2. Submit Application Materials
- Required Documents:
- Product Technical Data (Material Composition List, Coating Process Description);
- Product Instructions and Labels (Indicating Operating Temperature Range);
- Copy of Business License (with official seal).
- Sample Requirements:
- Requires ≥ 3 complete finished products (including inner pot, steaming rack, and other accessories). Samples from different batches must be submitted separately.
3. Confirmation of the Testing Plan
- The laboratory will separate the testing items based on component material (for example:
- Stainless steel inner container → GB4806.9 + high-temperature migration test;
- Plastic steaming rack → GB4806.7 + abrasion resistance test).
4. Laboratory Testing Cycle
| Test Type | Description
| General Items (Evaporation Residue, etc.) | For example, total migration test for plastic components
| High-temperature migration/coating test | Requires simulation of long-term use scenarios
| Microbiological Testing | For removable and washable components only
5. Report Review and Issuance
- The report must include: sample information, test method, and judgment basis (e.g., "Complies with GB4806.7-2023 limits").
- Electronic reports will be sent within one day, and paper reports can be expedited (shipped within three days).
6. Annual Compliance Maintenance
- 10% of products will be sampled annually, and material changes will require retesting.
III. Key Considerations for Enterprise Operations
1. Material Selection Pitfalls
- Avoid using high-nickel stainless steel (such as the 201 series); prefer food-grade 304/316.
- Coatings must provide a supplier's declaration of conformity to avoid exceeding perfluorinated compound standards.
2. Mandatory Labeling Requirements
- Labeling must include: "For food contact," applicable temperature (e.g., "maximum heat resistance 150°C"), and precautions for use.
3. Cost Optimization Recommendations
- Batch testing can reduce unit costs (e.g., package pricing for 10 or more units).
- Prioritize testing high-risk components (inner pot > steamer rack > outer shell).
IV. Compliance Process Diagram
A [Prepare samples and technical documents] --> B [Select a CNAS/CMA laboratory]
B --> C [Sign a testing agreement]
C --> D [Laboratory component testing]
D --> E [Are all items qualified?]
E --> |Yes | F [Issue a GB4806 test report]
E --> |No | G [Retest after rectification]
F --> H [Apply "Food Contact" Label]
H --> I [Annual Compliance Inspection]
Shen Gongwang Security: 44030602006947