20 Apr How Do You Store Coffee?
We get the lowdown from David Kennedy, Bun Coffee Master Roaster.
To the majority of consumers who purchase freshly roasted coffee beans from their preferred roaster, the question of how best to store their beans to maximise freshness and peak flavour can result in a confusing range of varying opinions.
“What is the best way to store my coffee?” This is a question that I’m often asked and increasingly more so now, during these strange times of isolation and working from home.
I have been answering this question for the last 20 years in the same way (a method I’ve personally been using for decades) to many a raised eyebrow and puzzled look – freeze it!
The reason for this is that coffee goes stale by way of exposure to the atmosphere where it can absorb external flavours as well as lose flavour from exposure to oxygen; the more intense the exposure, the more quickly oxidised and stale your coffee becomes.
Conventional wisdom is that storing in an airtight container, in a cool, dark place helps, which is valid to some extent. Physics dictates that a frozen atmosphere involves minimal movement of air molecules and thus minimal opportunity for the coffee to oxygenise!
While this practical reason makes perfect sense, an unexpected bonus of freezing your beans is that grinding frozen coffee beans can, (and does, in my opinion) improve the taste of the coffee!
Of vital importance at this stage to make sure that the beans are removed from the freezer and ground directly from frozen. The reason for this is that grinding frozen beans results in a more uniform “shattering” of the beans and thus a more uniform extraction when brewed.
Try this yourself – freeze some of your fresh roasted beans and compare the flavour of freshly ground frozen beans to that of your regular storage method. We would love to hear about your experience.
Please note: the beans must be stored (frozen) correctly in a sealed container/bag.