| 摘要 |
A method for heating a dose of liquid to different desired temperatures for the preparation of a hot drink, in which at least one pulse, of predetermined duration, of steam flowing at a predetermined constant rate from a steam source is caused to merge with a flow from a respective source, at a predetermined constant rate, of the liquid for preparing the drink. The method may be advantageously applied using an apparatus comprising a source of steam (1) and a source (2, 3) of liquid for preparing the drink, which comprises a duct (4) for supplying the liquid for preparing the drink between the liquid source (2, 3) and a supply point (5), pumping means (6) disposed in this duct (4) and generating a flow of liquid at a predetermined constant rate of flow, a duct (8) for supplying the steam between the source of steam (1) and a point of confluence (9) in the duct (4) for supplying the liquid for preparing the drink disposed between the pumping means (6) and the supply point (5), interception means (10) in this duct (8) adapted to cause pulses of the steam flow at a predetermined constant rate of flow, and a control and programming unit (UCP) for controlling pulses of predetermined duration from the interception means (10).
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