Coffee machine French DGCCRF certification testing project
Date：2026-03-16 09:33:43 Classification
：【question】 Visits：
When a coffee machine undergoes DGCCRF certification in France, the testing is not a general test of the "whole machine," but rather strictly divided according to the material properties of different components.
The core logic of DGCCRF testing is to simulate food contact processes and detect whether harmful substances migrate into the food (water or coffee).
I. Plastic Components (Water Tank, Casing, Internal Pipes, Bean Compartment, etc.)
Plastic is the largest component of a coffee machine, and testing is typically based on DGCCRF Document 4 or EU Regulation 10/2011.
Core Test Items:
1. Total Migration Test
Purpose: To detect the total amount of all substances that may migrate from the plastic.
Simulated Liquid: Selected based on the nature of the food in contact.
Contact with Water/Coffee: Uses distilled water or 3% acetic acid (simulating acidic liquids).
Contact with Oils (rarely): Uses olive oil or isooctane.
Conditions: Simulates actual operating temperatures (e.g., 70°C, 100°C) and time.
Limits: Generally not exceeding 10 mg/dm² (by surface area) or 60 mg/kg (by mass).
2. Specific Migration Tests
Testing for specific toxic monomers or additives in plastics:
Bisphenol A (BPA): For polycarbonate (PC) materials, strictly control the amount of leaching (limit 0.05 mg/kg).
Primary Aromatic Amines: For plastics or polyamide (PA) materials colored with azo dyes.
Formaldehyde: For melamine-formaldehyde resin or urea-formaldehyde resin (rarely used in core components of coffee machines).
Heavy Metals: Migration amounts of specific metals such as barium, cobalt, copper, iron, lithium, manganese, and zinc.
3. Sensory Testing
Item: Odor and taste.
Method: After water has remained in the component for a specified time, a professional tastes the water to determine if it has any off-odor.
Requirements: The water must be odorless, and the taste score must meet the standard.
II. Metal Components (Boiler, Heating Element, Brewing Head, Powder Bowl, Handle)
Metal components come into direct contact with high-temperature water and steam, making them a high-risk area for heavy metal leaching. Testing is typically based on DGCCRF Document No. 1 or the French DM/4Bis resolution.
Core Testing Items:
1. Heavy Metal Leaching
Simulated Solution: Typically uses 4% acetic acid (simulates an acidic environment, more stringent than coffee).
Test Conditions: Boiling or high-temperature immersion.
Key Detection Items:
Lead: Extremely important, especially for brass and bronze materials (extremely low limits).
Cadmium: Plating or alloy impurities.
Chromium: Stainless steel or chrome plating.
Nickel: Stainless steel, nickel plating (common allergen, strict limits).
Manganese: Component of stainless steel.
Aluminum: If the boiler is made of aluminum, aluminum ion migration needs to be tested.
2. Coating Testing (if applicable)
If the metal surface has a non-stick coating (such as Teflon), additional tests are required:
Total fluorine content.
Specific substance migration (such as PFOA residue).
III. Rubber and Silicone Components (Sealing Rings, O-rings, Pipes)
These components, though small, come into direct contact with high-temperature liquids, easily generating odors or releasing small molecules. Testing should be based on DGCCRF document 14.
Core Test Items:
1. Overall Migration Test
Immersion test using distilled water or 3% acetic acid.
2. Volatile Organic Compounds (VOCs)
Silicone easily releases volatile substances at high temperatures; total amounts must be tested.
3. Peroxide Value
Testing to ensure the silicone has undergone sufficient vulcanization treatment.
4. Nitrosamines and Nitrosamine Formations
Important: For rubber materials (such as EPDM rubber), these are carcinogenic substances and are subject to very strict controls.
5. Formaldehyde Release
IV. Glass and Ceramic Components (Glass Pots, Cup Holders)
Core Test Items:
1. Lead and Cadmium Leaching
This is the most crucial test for glass and ceramic components.
Immersion in 4% acetic acid is used to detect the leaching of lead and cadmium ions.
V. Paper and Fiber Components (Filter Paper, Filter Cups)
If the coffee machine uses a paper filter, the following must be tested:
1. Fluorescent Whitening Agent: Not detectable.
2. Heavy Metals: Lead, Cadmium, Mercury.
3. Pentachlorophenol (PCP): Preservative residue detection.
4. Formaldehyde.
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