Food Grade Silicone Coffee Degassing Valve Zero Additives Coffee Packaging Valve
PRODUCT INFORMATIONS
Product Overview
Technical Specifications
| Parameter | Value / Range |
|---|---|
| Material | Food‑grade PP/PE housing + silicone diaphragm |
| Opening pressure | 2.0 – 3.0 mbar (customisable 0.5–3.0 kPa) |
| Sealing temperature | 163 – 168 °C |
| Dimensions | Ø20–23 mm × H 3–6 mm (±0.1 mm) |
| Weight | 0.55 – 0.85 g (±0.02 g) |
| Cycle life | ≥ 1,000,000 cycles |
| MOQ | 100,000pcs |
| Filter option | Available (for ground coffee) |
How It Works
The one-way degassing valve operates on a simple differential pressure principle:
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Degassing Phase: Freshly roasted coffee releases CO₂ as a byproduct of post-roast chemical reactions. As internal bag pressure builds and exceeds the calibrated opening threshold (typically 2-3 mbar), the pressure forces the silicone diaphragm to lift.
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Gas Release: CO₂ and other volatile gases escape through the valve to the outside atmosphere while the filter (where equipped) prevents coffee particles from clogging the mechanism.
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Automatic Sealing: Once internal pressure drops below the closing threshold, the silicone diaphragm returns to its sealed position, instantly blocking external oxygen, moisture, and contaminants from entering the bag.
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One-Way Protection: The valve opens exclusively when internal pressure exceeds external pressure—ensuring that outside air never enters the package.
Applications
| Segment | Benefit |
|---|---|
| Roasted whole beans | Controlled CO₂ release, no bloating |
| Ground coffee | Rapid degassing with optional particle filter |
| Specialty / single‑origin | Aroma retention, extended shelf life |
| Nuts, spices, pet food | Oxidation and rancidity prevention |
Core Competitive Advantages
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Food-Safe Eco Production: Zero harmful additives, FDA & EU certified to eliminate packaging safety risks.
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2M+ Cycle Durability: Premium silicone diaphragm outperforms rubber alternatives, cutting after-sales costs.
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Full Material Compatibility: Fits all common coffee pouch materials to simplify inventory management.
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Flavor Lock Degassing: Releases CO₂, blocks oxygen to extend coffee shelf life by 30%+.
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High-Speed Machine Ready: Precise dimensions for zero-failure automatic heat sealing.
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B2B Cost Efficiency: Integrated molding reduces costs, supports bulk & custom orders
Dongguan Xinshengji Hardware Products Co., Ltd
Founded in 2007 and has extensive industry experience.
A packaging enterprise that integrates the development of plastic and hardware products, mold manufacturing, and injection molding.
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