The Thermal coffee maker, with or without automatic infusion, eliminates the need of a carafe and a warming plate since it is a portable thermal server. It can keep coffee hot for hours without affecting the taste or aroma. A water valve is integrated for tea, tisane, soup, hot chocolate, etc. It is the most economical option. It is also ideal for having free coffee at the work place. The silex is also available though, we suggest thermal for a better taste.