Apparatus and method for preparing a foamed beverage suitable for consumption

The apparatus for preparing a beverage with a foam layer suitable for consumption is provided with a mixing chamber, supply means for supplying a liquid, such as water or steam, to the mixing chamber and first dosing means for dosed supply of a concentrate to be mixed with the liquid, such as a coffee concentrate, to the mixing chamber for mixing the concentrate with the liquid in the mixing chamber while foam is formed for obtaining the foamed beverage suitable for consumption. The mixing chamber is designed as a whirl chamber while the supply means supply the liquid to the whirl chamber in such a manner that in the whirl chamber a whirl is formed of the supplied fluid. The supply means are provided with a second dosing device for dosed supply of the liquid to the whirl chamber and the apparatus is further provided with a control device for controlling the first and second dosing device for preparing a predetermined amount of beverage.