Two double walled insulated stainless steel thermal carafes equip you to serve plenty of hot, fresh coffee at home or at the office. You can brew a pot of flavored or a pot of decaf, in addition to a pot of regular. Brewing options allow you to brew as little as one 5 cup pot and as much as two 20 cup pots. It's equipped with the Krups Deep Brew system which features a special filtering action for maximum flavor without bitterness. It als has a specially designed heating and tubing system which minimizes calcification and leaves no residual water in the system when brewing is complete.