| 摘要 |
The present invention relates to improvements in cartridges for producing beverages and, in particular, for producing beverages that comprise a fine bubble foam on the surface of the beverage, known as crema. In a first aspect, the present invention provides a cartridge (1) incorporating within a beverage flow path between the inlet (27) and the outlet an eductor for entraining air into the beverage, the eductor (71,128) comprising an aperture (128) for producing a jet of the beverage, means for producing a pressure reduction of the jet of beverage, at least one air inlet (71), a deflector channel downstream of the aperture for imparting an asymmetrical flow to the beverage, and at least one impact surface (81b) onto which the jet of beverage impinges. |
