Independent Coffee Roastery
Build a focused roasting brand — from sample roasters to consistent production runs and professional packaging.
Consumables
One-Way Degassing Valve (Plastic, DN20)
One-way plastic degassing valve for coffee bags (DN20).
Introduction
One-way (unidirectional) plastic degassing valve for coffee bags and cans. Allows roasted-bean CO₂ to escape while preventing oxygen ingress, preserving freshness and preventing bag inflation. DN20, pressure-relief type, suitable for aluminium-foil composite pouches.
Features
- One-way CO₂ release, O₂ blocking
- Plastic body, DN20
- Pressure-relief design
- Fits foil composite pouches
- Prevents bag inflation
Typical Specifications
| Type | One-way (unidirectional) degassing valve |
|---|---|
| Material | Plastic |
| Diameter | DN20 (20mm) |
| Pressure | Atmospheric / low-pressure relief |
| Application | Coffee bags, cans, foil pouches |
Specifications shown are supplier-provided reference information and may vary by model or configuration. Confirm final specifications, applicable certifications, and commercial terms before ordering.
Fit Check
Find the right configuration
Roasteries packaging freshly roasted beans in valve-compatible bags.
Business stageAny stage
Production capacityBulk consumable supply.
What problem it solves
Preserves freshness of roasted coffee by venting CO₂ while blocking oxygen.
Ideal for these business types
- Independent Coffee Roastery
- Café + Roastery
- Wholesale Coffee Production
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Applications
Café + Roastery
Run roasting on-site alongside a working café — one operation, two revenue streams, shared equipment.
Wholesale Coffee Production
B2B coffee production at scale — high-capacity roasters, bulk grinding, and packaging throughput built for wholesale.
Frequently Asked Questions
Do I need a valve on my coffee bags?
For freshly roasted beans, yes — the valve lets CO₂ escape without letting oxygen in, keeping the coffee fresh and the bag from ballooning. For pre-ground or long-shelf-life product, valved or unvalved both work.
Request Sourcing Assistance for One-Way Degassing Valve (Plastic, DN20)
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