Patent attributes
The invention concerns a beverage preparation apparatus (10), said apparatus having at least one chamber (1) for receiving and mixing an aqueous liquid and at least one soluble beverage ingredient, said chamber having: a cylindrical lateral side wall (11) having a liquid inlet (2), a bottom wall (12) having a beverage outlet (3), and wherein the liquid inlet (2) is positioned close to the bottom of the chamber, and wherein the liquid inlet (2) is configured so that the liquid is introduced in the chamber as a straight jet of liquid, and wherein said chamber includes a first bump (4) separating the bottom wall in two areas (121, 122), and wherein said chamber includes a second bump (5) rising from the bottom and lateral side walls of the chamber and presenting a shape designed to convert the jet of liquid into a swirl and to guide said swirl so that it flows along the line L in front of the liquid inlet.