How to store coffee so beans don't get old

One of the hot topics is how to best maintain the quality and flavor of coffee over time, or simply put, how best to store it.

This is another topic where everyone knows the "right" answer. But to understand how coffee beans should be stored, let's look at what causes coffee to get "old."

Attacks on fresh coffee beans are as numerous as those in political ads. It's really a shame that innocent little coffee bean has to put up with so much.

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The Storage of Green Coffee

The Storage of Green Coffee (Coffea arabica): Decrease of Viability and Changes of Potential Aroma Precursors
Dirk Selmar*, Gerhard Bytof and Sven-Erik Knopp

Institute for Plant Biology, Technical University Braunschweig, Mendelssohnstr. 4, 38106 Braunschweig, Germany

Background and Aims: When green coffee is stored for a prolonged time the coffee quality decreases distinctively. Apart from well-known ‘off-notes’ that arise from undesired oxidations of lipids, a typical ‘flattening’ of the cup quality is detectable. In order to elucidate the biological causes for this phenomenon, differentially processed coffees (wet, dry, semi-dry processing), were stored under standard conditions for 2 years and analysed comprehensively.

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