Abstract: There is disclosed a coffee grinding machine for grinding coffee beans and forming a dose of ground coffee directly in a filter basket with a bottom layer of ground coffee having a first mean particle size and an adjacent layer of ground coffee having a second mean particle size, comprising: grinding members for grinding coffee beans, an electric motor for causing rotation of at least one grinding member with respect to another grinding member, and a device configured to cause, during grinding of coffee beans for forming dose, a variation of rotation speed of said electric motor between a first speed and a second speed, wherein either said second mean particle size is smaller than said first mean particle size and said first speed is greater than said second speed or said second mean particle size is greater than said first mean particle size and said first speed is lower than said second speed.

Abstract: A method for preparing a hot beverage, in particular a coffee beverage or a tea beverage, with flavors being extracted from a flavor carrier, which is prepared from roasted coffee or dried tea, by means of water or steam having a plurality of steps: a predetermined quantity of the flavor carrier, in which the flavors are contained, is added to an extraction chamber which can be closed in a fluid-tight manner in a first step; water or steam for extracting flavors from the flavor carrier is added to the extraction chamber in a subsequent step; the extracted beverage flows out of the extraction chamber in a subsequent step; before the step of introducing water or steam into the extraction chamber, a step of introducing pressurized gas into the extraction chamber is executed. In the process, the internal pressure in the extraction chamber rises.