| 摘要 |
A draught beverage (170) which may be alcoholic or non-alcoholic, for exampl e a lager or cider in an open-topped drinking vessel or glass (172). The beverage comprises a water content and dissolved gas content. The draught beverage is dispensed from a font at a cooled temperature below the freezing point of water at ambient atmospheric pressure. The dispense temperature may be in the range of -1 ~C to -12 ~C. The beverage in the glass may or may not be subjected to external excitement energy, for example ultrasound, to encourage formation of nucleation sites in the beverage. Either way dissolve d gas bubbles out of the beverage causing occurrence of nucleation sites at which ice (188A, 188B) from the water content forms. At least in part the ic e has a slushy character. A head (174) also forms on the dispensed draught beverage and below the head the ice (188A, 188B) locates and develops downwards into the beverage.
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