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).
Ask About This Product
Tell us about your business and equipment requirements to start a conversation on WhatsApp.
Product Overview
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.
- One-way CO₂ release, O₂ blocking
- Plastic body, DN20
- Pressure-relief design
- Fits foil composite pouches
- Prevents bag inflation
Features are supplier-provided reference information and may vary by model or configuration. Confirm final specifications before ordering.
Fit Check
Where This Product Fits
Roasteries packaging freshly roasted beans in valve-compatible bags.
What problem it solves
Preserves freshness of roasted coffee by venting CO₂ while blocking oxygen.
Typical business settings
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.
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.
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.
Discuss the One-Way Degassing Valve (Plastic, DN20) on WhatsApp
Send us a message with your requirements — target volume, packaging format, or market. Configurations, pricing, MOQ, and lead time are confirmed with the supplier for your product and destination; nothing is guessed up front.
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