electrically driven device for preparing heißgetränken, such as coffee, tea od.dgl., especially coffee

摘要

An electric coffee or tea maker wherein a supply of water softening agent is installed in the region of the outlet of a water tank so that the stream of water which is discharged by the tank when the maker is in use is acted upon by the softening agent before it enters the conduit or conduits which convey the stream through an electric heater and thereupon into a receptacle for comminuted coffee beans or tea leaves. This prevents gradual clogging of the conduits with boiler scale. The supply of softening agent can be replenished or replaced. This is determined by looking through an observation window so as to ascertain the color of the softening agent. The color is indicative of the condition of the softening agent, i.e., whether or not the softening agent is still capable of performing its water-softening function.