Electric coffee marker with filter - removing unwanted material from cold water before heating by hotplate

摘要

The coffee maker is of the type in which cold water from a reservoir is heated by flowing through a hot plate under the jug and then dribbles through a filter cup, full of coffee grounds into the jug. The water flows out of the reservoir via a filter (13) which removes the nitrates and calcium compounds which are often present in tap water. The water flows from an eccentric pipe end (27,24) into a first filtering grid (20) and then through a second grid in the base (16) of the rectangular filter housing.