| 摘要 |
A method for making and dispensing coffee-based beverages in machines comprising a preheating boiler (1) with temperature control, at least one hydraulic pump (2), a dispensing assembly (3) provided with systems for further heating and temperature control of the water, and manual or electronic means for controlling both the thermal power delivered within the preheating boiler (1) and the thermal power delivered by the assembly (3), as well as means adapted to weigh the ground coffee in the filter basket holder (5) and the weight of the dispensed product, the method being characterized in that it comprises the following steps: – increasing the temperature of the water, inside the boiler (1) and inside the assembly (3), in order to achieve a preheating thereof with reading of the associated temperature in order to adjust the delivered thermal power; – a first dispensing step of preheated water at a selected temperature in order to achieve a pre-infusion in a preset time or for a preset volume of water in the absence of pressure in the hydraulic pump, wherein the coffee powder is only wet; – a second dispensing step in order to achieve an infusion of the coffee powder into which, by means of the use of a logic unit that manages the volume of dispensed water by means of a volumetric meter and at a preset and constant pressure as a function of the weight of the ground coffee and of the dispensed product, an amount by volume of water is dispensed which is calculated to achieve a selected and preset brew ratio; – a third dispensing step to achieve a post-infusion in which the hydraulic pump (2) is deactivated again for a time needed to reach by weight the programmed dose of dispensed product. |
