For over 25 years, Plitek’s one-way degassing systems have enabled coffee roasters to eliminate bulk degassing from their operation and preserve freshness and quality of their coffee. With billions used world-wide, PLI-VALV® valve technology is proven to allow freshly roasted coffee to naturally degass inside of hermetically sealed packaging while providing an effective barrier to environmental oxygen, moisture, and contamination.


  • Reliable
  • Cost Effective
  • Environmentally Friendly
  • Industry Proven Technology
  • Single Source for One-Way Degassing Valves and Applicators

One-way Degassing Valves and Vents
One-way degassing valves (often called freshness valves, aroma valves, or coffee valves) are critical to maximizing coffee’s freshness by allowing freshly roasted coffee to degas in the package. Our patented one-way degassing valves are industry proven to effectively and efficiently vent CO2 gas build-up while sealing-out environmental oxygen, moisture, and contaminants.

  • PV-25-FV
    With integrated filter, designed for ground and whole bean coffee packaging up to 5 lbs
  • PV-52
    "Mini valve" designed for fractional size bags
  • PV-33
    Designed for flexible coffee packaging up to 5 lbs
  • PV-41
    "Metalized" for rigid and can coffee packaging
  • PV-84
    Degassing vent for head space elimination/packaged air

Valve Applicator Systems
PLITEK® custom engineers, fabricates, and installs applicator systems used to apply PLI-VALV® one-way degassing valves. They are the most efficient way to apply PLI-VALV® one-way degassing valves to rigid and flexible coffee packaging. PLI-VALV® applicator systems integrate well with all vertical and horizontal form fill and seal equipment on the market.

  • PVA-50™
    Semi-automatic valve applicator for pre-made bags and lids with rates up to 60 valves per minute
  • 150 Series
    Automatic, intermittent or continuous motion valve applicator system with rates up to 150 valves per minute
  • Custom
    Automatic, intermittent or continuous motion valve applicator system with rates up to 900 valves per minute

Custom Engineered Equipment
PLITEK® custom engineers and fabricates specialty equipment to support our package degassing systems including custom applicators, custom web splicing equipment, custom punching units and much more.

2D and 3D Design
In-House Fabrication
Expert Installation, Training, and Support