The Oster® Optimal Brew™ artisan-style drip coffee maker uses "blooming" to saturate coffee grounds before brewing. The blooming process happens at the start of the brewing cycle to help extract the fullest flavor from the grounds. When combined with a high brew temperature of up to 205° and faster brew speed, the end result is exceptional tasting coffee. The Optimal Brew™ coffee maker keeps coffee warm and fresh for up to four hours inside a double-walled, stainless steel thermal coffee pot plus there's a removable water reservoir for easy filling. Wake up to the smell of freshly brewed coffee thanks a delay brew programmable features. Too busy to wait for the pot to stop brewing? Use Pause'n Serve to pour yourself a cup before the brew cycle finishes. A brew meter even measures how much coffee is in the carafe so you don't have to guess.