Are you a person who brews a whole damn pot of coffee? If so, how long does your brewed coffee stay fresh? Once you brew your coffee, it only stays fresh for about 20 minutes. If you're guzzling down the entire pot of coffee in 20 minutes, no worries about the freshness. If not? Store the remaining coffee in a thermos or carafe.
Honestly, just cut back to a single serve portion of coffee. Don't compromise the flavor of your coffee by brewing fresh coffee on top of your old ass coffee. Grab a reusable coffee pod and enjoy a fresh cup of coffee.