One question I often get from customers is how should roasted beans be stored? Should they be frozen? Should I grind them?
First and foremost, you don’t want to grind your beans until you’re ready to brew them. Freshly ground beans add about 30% more flavor to your cup of coffee. Freezing beans is also generally not a good idea as it may dry the beans out faster without adding real benefit. Also, you shouldn’t store beans in direct sunlight because it will lead to your beans become stale faster.
Here’s how we recommend roasted coffee beans should be stored…
First off, freshly roasted beans release CO2. That gas needs to be able to escape, especially for the first 24 hours after roasting. As such, we package our beans in resealable bags with a relief valve. These special valves allow the CO2 to emit from the bag without allowing oxygen to come in contact with the beans.
You see, oxygen is the number one factor in causing coffee beans to go stale. Basically, for fresh roasted coffee beans, oxygen is public enemy number one!
Once you get the beans home, you can certainly leave them in the resealable relief valve bag. However, airtight containers can also do the trick, as long as the CO2 has been allowed to release for 24 hours. Containers made of glass or ceramic are the most popular for coffee bean storage, plastic and metal can alter the flavor. Make sure you store them in a spot out of direct sunlight.
The bottom line is that coffee bean storage is just as important as how you roast it, grind it, and brew it. Following proper storage guidelines will help in maintaining the highest quality cup of coffee for you to enjoy. And just remember, minimize exposure to oxygen.