- How long does an unopened package of ground coffee last? The precise answer depends to a large extent on storage conditions - store in cool, dry area.
How long does an unopened package of ground coffee last at room temperature? Properly stored, an unopened package of ground coffee will generally stay at best quality for about 1 year at room temperature.
Is unopened ground coffee safe to use after the "expiration date" on the package? Yes, if properly stored - commercially packaged coffee will typically carry a "Best By," "Best if Used By," "Best Before", or "Use By" date but this is not a safety date, it is the manufacturer's estimate of how long the coffee will remain at peak quality.
How can you tell if ground coffee is bad or spoiled? Ground coffee typically loses flavor over time and develops a stale taste - if coffee develops an off odor, flavor or appearance, it should be discarded for quality purposes; if mold appears, discard the ground coffee.
Sources: For details about data sources used for food storage information, please click here