
1. Buy whole beans (rather than preground) with a "roasted on" date. Yes, coffee beans (like spices and dried beans) have a limited shelf life. Look for beans roasted within a month of the purchase date. Also, get only as much as you think you'll use in a week, and store the beans in an airtight jar--not in the freezer.
2. Grind the beans--preferably with a burr grinder (as opposed to one with a blade) for a uniform grind--just before brewing. As those in the coffee business say, once coffee is ground, you measure its freshness in seconds, not hours, days, or weeks.
3. Use a French press or a hand-drip filter cone for the best cup of coffee. Keep in mind that the cleaner and better-tasting the water you use, the more delicious your coffee will be. Now, with the help of a good thermos, you'll have excellent coffee and save money to boot.