Coffee maker

Details Coffee maker Coffee maker

A - Human Necessities

47

J

65/13

A47J 31/02 (2006.01) A47J 31/057 (2006.01)

Patent

CA 1220950

ABSTRACT: The invention relates to a coffee maker comprising a water reservoir (1), a filter device (2) and a flow heater (3) for heating water from the water reservoir for delivery to the filter device. A problem associated with coffee makers is the deposit of scale in the flow heater. It is proposed to provide a coffee maker with means (13, 14) for adding a small amount of coffee extract to the water before it enters the flow heater (3). Coffee extract naturally contains phosphoric-acid-like compounds which inhibit the crystal growth of metal salts in the water. Preferably, coffee extract is fed continuously from the filter device (2) to the water reservoir (1).

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