| 摘要 |
<p>The invention provides a method and apparatus for reconstituting beverages wherein superheated reconstituting liquid and beverage concentrate are delivered into a mixing chamber having an adjustable volume. The mixing chamber is the volume (42) between two coaxially arranged tapered elements (43, 44) which are disposed one inside of the other. Final beverage product emanates from an aperture (48) in the tip of the outer tapered element. At least one tapered element can be displaced in the longitudinal direction so that the volume of the mixing chamber decreases and approaches zero as the tapered elements are moved closer together. Thus, when the system is shut down the volume of the mixing chamber is allowed to approach zero so that very little product is susceptible to degradation in the mixing chamber due to prolonged exposure to high temperatures during a shutdown. The reduced volume mixing chamber may be flushed with reconstituting liquid. In addition, the temperature of the mixing chamber can be controlled during a shutdown by adjusting the temperature of water contained within the walls of the tapered elements.</p> |
