Rotary Screw Compressors – Perfect Compressors for medium to high nitrogen flow processes!

Packaging industries benefit greatly from using nitrogen generators in their applications. From food packaging to cheese packaging, to coffee packaging and fruit storage – the supply on site nitrogen integrated into these industries’ specific applications has proven to save money, decrease expenses and reduce labor costs.

As part of the packaging industries, many automated machines throughout these facilities require compressed air. The most common and widely used type of air compressor recommended for these industries are rotary screw compressors.

Packaging industries require nitrogen purity in medium to high flows 99.5% (0.5% O2 or below). Rotary screw compressors are perfect for this application. Rotary screw compressors are positive displacement compressors, meaning compression takes place by matching two helical screws that, when turned, guide air into a chamber, the volume of which is reduced as the screws turn, allowing the flow of air to be controlled.

Rotary screw compressors are outfitted with enclosures which keeping noise levels to a minimum. Many also have integral refrigerated air dryers to minimize floor space.  Rotary screw compressors are oil-lubricated while make them louder, however in a factory type environment this is rarely an issue. All nitrogen generators require dry compressed air therefore an air dryer must be installed to protect the units from water contamination.

A Fresh New Idea for Coffee Packagers!

If you’re looking for a guaranteed process to make the freshest coffee possible in the coffee packaging industry – look no further than nitrogen generation.

Nitrogen is used in the food industry because of its ability to reduce spoilage.

Immediately after roasting coffee beans, oxygen begins destroying coffee causing it to lose its flavor. Transferring oxygen with nitrogen or "Nitrogen Flushing" during packaging preserves the flavor of  the coffee.

In a simple taste test comparing nitrogen-flushed coffee to a valve bag coffee the taste results based off the packaging process are significantly different. After being packaged for a period of approximately 20 days, coffee that was nitrogen-flush packaged was far more fresh than the valve bag, in which the coffee was flat and bag-tasting. Therefore it can be concluded that nitrogen flushing offers stabilization and preserves freshness when it comes to coffee packaging. Nitrogen as a pure element has no smell, no taste and no colour, this assures that chances of it affecting the taste and smell of the coffee are next to impossible.

Check out more information on nitrogen generators and the coffee packaging industry.