What are the items for the German LFGB test for stainless steel double-layer vac
Date：2025-08-01 10:43:59 Classification
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Stainless steel double-wall vacuum flasks exported to Germany must undergo LFGB (Lebensmittel- und Futtermittelgesetzbuch) certification. Testing focuses on heavy metal migration and material safety. The following is a summary of the core testing items and procedures based on German regulations:
I. Core LFGB Testing Items
1. Heavy Metal Extraction Test (Required Core Test)
- Liner (Direct Food Contact):
- Lead (Pb), Cadmium (Cd), Chromium (Cr), and Nickel (Ni) Migration Test.
- Limit Requirements:
- Lead ≤ 0.2 mg/L (Acidic/Neutral Simulated Fluid)
- Nickel ≤ 0.5 μg/cm²/week (Lid Contact Area).
- Casing and Accessories:
- Screening for extractable heavy metals (Pb, Cd, Cr, and Ni) to ensure overall safety.
2. Sensory Testing (Odor and Taste Migration)
- Evaluates whether the cup releases odor or affects the taste of food when filled with hot liquids (in accordance with LFGB §30 & §31).
3. Specific Testing of Coatings and Sealing Components
- Rubber Seals: Formaldehyde Emission and Volatile Organic Compound (VOM) Testing.
- External Coating (if any):
- Total Migration (Limit ≤ 10 mg/dm²)
- Specific Chemicals (e.g., primary aromatic amines, phthalates).
4. Physical Performance Testing
- Thermal Insulation (6-hour Temperature Retention)
- Sealing (Inverted Pressurization Leak-Proof)
- Impact Resistance (Drop Test).
II. Materials to be Prepared for Inspection
- Product Structure Diagram (Indicate the materials of the inner liner, outer shell, and seal)
- Material Declaration (Stainless steel grades must comply with 06Cr19Ni10 or 12Cr18Ni9 in GB/T 3280)
- LFGB Declaration of Conformity provided by the supply chain (e.g., rubber and coating suppliers).
III. Timeline and Cost Reference
- Timeline: Routine testing requires 5-7 working days.
- Cost: Basic Package (Heavy Metal Migration + Sensory Testing): Starting at approximately 1,000 RMB
IV. Key Considerations
1. Material Compliance:
- The inner liner must be made of food-grade austenitic stainless steel (e.g., 06Cr19Ni10) to avoid excessive manganese levels.
2. Qualifications:
- Choose an ISO 17025-accredited laboratory (e.g., Dezewei Testing) to ensure global recognition of the report.
3. Special Applications:
- When storing acidic beverages (juice, coffee), additional verification of heavy metal migration stability is required.
Note: LFGB reports generally have no fixed validity period, but material changes require retesting. For complete regulatory information, refer to §30-31 of the German Food and Consumer Products Act and EU Framework EC1935/2004.
If you require specific laboratory recommendations or require optimization of testing details, we can provide a product structure diagram for a customized solution.
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