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.
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