Want a fresh cup o' joe at home? Keep in mind light, air and heat are coffee's archenemies. Fresh-ground coffee delivers the best taste. Your nose can tell you if coffee is stale, which is the case with most pre-ground coffee. Whole beans stay fresh longer, about two weeks. Store at room temperature away from light and heat in an airtight container. For longer storage, seal airtight and freeze up to six months. Grind the beans frozen. If you don't want to fuss with grinding your own coffee, buy whole beans for enough coffee to last you several days, and grind it at the store. This article can be read in full with a Plus Edition account.