Nitrogen gas is injected in a package to preserve roasted coffee beans longer.
Roasted coffee beans have to be cool down as soon as possible in order to keep them in a good quality.
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Packaging (Coffee Break N3)
Nitrogen gas is injected in a package to preserve roasted coffee beans longer.
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By Toshiyuki Ishiwata
Presented by Hisaaki Nagao
Source: SBS
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