It's our special bag with a one-way valve that allows the carbon dioxide released by freshly roasted coffee beans to escape a sealed coffee bag without allowing flavor-robbing oxygen to get in. All Starbucks coffee are sold in 250gm bags and are sealed in our airtight FlavorLock™ bags within two hours of roasting so that it stays fresh until you’re ready to use it.
For the freshest tasting coffee, we will recommend starting with whole beans and grinding them fresh for each pot. Or, if you prefer, we can grind the coffee fresh upon purchase to cater for the different brewing methods used at home or office
Drip makers perform best with a grind specifically for a flat bottom or cone type filter. All Starbucks stores can grind coffee to this specification. Espresso machines are grind-sensitive and require a very fine grind, 30-35 seconds in a blade grinder. Slow and fast shots are often caused by a grind that is too fine or too coarse, frozen or refrigerated espresso beans and tamping coffee too hard or not firmly enough.
We will recommend storing it in an airtight container in a cool, dark place and grinding it just before brewing. Once roasted, coffee begins to lose its flavor the longer it is exposed to air and moisture. Coffee in an unopened FlavorLock™ bag will stay fresh for several months - check the “best by” date printed on the back of the bag.