DRIP-TYPE COFFEE-MAKER COMPRISING A WATER TREATMENT DEVICE

摘要

The invention concerns a drip-type coffee-maker comprising a water reservoir (1) supplying a water-heater with continuous circulation (6), and a device (9) for treating the water in the reservoir by means of a water-soluble scale preventive agent. The invention is characterised in that the water treating device (9) comprises an element (10) for measuring out an amount of scale preventive agent (23) which is determined on the basis of the volume of water supplied to the water-heater (6) and which is injected into the water.