Folks all over the world are looking for the freshest brew, but not a lot of people are concerned about storing the coffee, which is actually a key element in the coffee experience. Unless, you have access to a coffee store near your house, and would never buy more than that day consumption. If not, you would definitely have to store the coffee.
So, what is the best way to store coffee? Remember the coffee freshness rule and you would know how long you can store that "coffee". Raw green coffee beans can be fresh for years, so they are the easiest to store. Roasted beans, which are what you can easily find in Supermarket, would lose their flavour after a week.
And if you were to ground the coffee, the flavour would be lost within hours. And you probably can forget about keeping brewed coffee as it begins to lose its flavour after minutes.
Based on the above, the easiest to store would be green coffee beans and personally, I think they are the best way to store coffee. All you need to do is to store in a cool location, in a tightly sealed container and you can keep it for more than a year!
Sure, you need to purchase a roaster and a grinder in addition to your coffee maker but you would not have to throw away any unused coffee and you would have the freshest coffee.
For roasted beans, it is similar to green beans, store in an airtight container and try to use ceramic as plastic or metal would contaminate the taste of the beans. Keep away from sunlight and try to store in dark places. This allows you to keep the beans fresh for at least 2 weeks.
And if you really want it to keep a longer time, keeping in the freezer can probably last for another 2 more weeks. To use it, just take it out and grind. Do take note that it is to keep in the freezer and not the fridge, never keep coffee beans in the fridge as it would simply absorb the odour of the other food and spoilt your coffee...
If you really want to store the roast and ground which cannot be store past a few days. Keep it with a good airtight container and away from the sun. This would allow the freshness to stay for a week. For the ground, freezer cannot help much as the surface area is too wide and it would still go stale.
If it is not green beans, the coffee beans would not last more than a month. To me, the best to store coffee is to go "green", however, let me go through the savings and convince you on this as well!
1 kg of Green beans can last you probably for a year and cost about $25.00. Assuming you have a fully automatic espresso machine which comes with a grinder, you would be buying roasted beans. You would have to buy them every month and it cost about $15.00 per 100g.
In one year, your roasted beans would cost you $150.00. So, between the roasted and the green coffee beans, that is a savings of $125.00. Sure, you have to get a roaster, let say you get a "Fresh Roast" roaster for $70.00, you still have a savings of $55.00.
Now, would you not agreed with me that the best way to store coffee is to go "green". Storing the Green coffee beans allows you to buy coffee in bulk (get discount from bulk purchase), roast your own coffee and have the freshest cup possible and not forgetting, it saves you some money in the process...