Degassing ValvePouches

Degassing Valve Pouches Toucan.png

Have you ever noticed the rigid circular button-like object at the center of certain pouches and flexible bags? It’s called a one-way degassing valve, often used on fermented food and coffee packaging. Typically made out of high-density polyethylene (HDPE), the degassing valve’s purpose is to periodically allow gas to exit out from the inside of the package when the internal pressure exceeds a certain (small) value. As the name implies, air cannot flow from the outside inwards (because it’s a “one way” valve), resulting in an airtight seal to keep the internal contents fresh.

 

FEATURES & BENEFITS:

  • Prevents product oxidation
  • Keeps bags "deflated"
  • Rounded corners
  • Custom printing
  • Gloss or matte finish
  • Additional options available on request
     

     

    The small plastic one-way valve,  in the coffee bag, has become ubiquitous in the specialty coffee trade. The valve was originally designed for fresh roasted coffee.  Why? Fresh roasted coffee naturally gives off large amounts of CO2 (gas). The naturally released CO2 creates an overpressure in packages and it must be released from a package. At the same time, the coffee needs to be protected from degradation by air (oxygen stales coffee!).  Prior to the invention of the valve, roasters had tough choices: a) let their coffee “degas in storage ” for up to 72 hours before packaging in a package, like a can, or b) package coffee in porous paper bags. The predicament - cans carry dead coffee, and the paper bags had a limited shelf life (7-10 days).

    The one-way degassing valve solved the problem and gives many roasters the opportunity to roast and package fresh coffee immediately. As a result, roasters extend distribution of fresh coffee and expand into markets previously outside their geographic scope.

    Toucan Packaging offers one-way degassing valves used in a variety of applications including large plastic bags that need to be deflated during palletizing.  Some products that use the one-way valve are: coffee, pet food, plastic resin, agricultural chemicals and pharmaceutucals. Get it contact with us for more information about our line of degassing valve bags and pouches.

     

     

    Variety of Features

    • Space efficient
    • Significantly less energy to produce vs. rigid packaging
    • Near total evacuation allowance
    • Differentiate on the shelf
    • Added conveinence to the growing "on-the-go" consumer

     

    Applications & Markets

    • Whole bean coffee
    • Ground Coffee
    • Pet Products
    • Fertilizer
    • Raw Plastic Materials
    • Pharmaceuticals