Functional principle

Extended aroma protection guaranteed

The one-way WICOVALVE® pressure-relief valve complies with the highest requirements imposed by modern packaging technology. It was originally developed for coffee, a sophisticated product. An absolutely gas-tight package (oxygen and water vapour) package for coffee beans is possible only with a valve. It extended the shelf life of bean coffee from a few weeks to at least two years.

What makes the WICOVALVE® so unique?

It is the only product worldwide that assures consistent quality with its functional integrity across a period of three years. This is made possible by high quality valve components and materials such as polyethylene, polypropylene or Ecovio® (a bio compostable material).

During the life cycle of a package, the valve must open and reclose many times without allowing oxygen to diffuse back into the pack. This is why WICOVALVE® valves, depending on the application, have different material combinations, opening pressure levels, flow capacities and particle protection. Thanks to the interaction of these properties, the impeccable quality of the packaged product and its aroma are guaranteed over a lengthy period of time.

In the course of the past years, the valve technology has been repeatedly adapted for new applications. This now makes it possible to market fresh, untreated products in packaging that fulfils the requirements of modern logistics as well as the expectations of consumers.

The WICOVALVE® technology covers further applications for gas-generating products such as sauerkraut, fresh convenience meals, cheese, doughs, soy, mushrooms, etc.