Ice cream preparation appliance

An appliance for preparing a single serve of a frozen or semi-frozen aerated edible products of the kind that undergoes at least a partial phase change at a phase-changing temperature during its-preparation of said single serve from a mixture of non-frozen ingredients, the appliance comprising:

• a cooling and processing chamber defined between chamber walls that comprises at least one ingredients inlet for introducing the ingredients into the chamber, at least one finished product outlet and a dasher for mixing and aerating the mixture during a preparation stage;
• a cooling utility coupled to and configured for cooling said cooling and processing chamber, the cooling utility having a cooling capacity smaller than the thermal energy released during the preparation stage;
• and
• wherein a mass ratio between the mass of the cooling and processing chamber and the mass of the single serve of edible product to be produced therein is in the range of about 5 to about 40,
• the cooling and processing chamber has a thermal mass such that, once the cooling and processing chamber is cooled by said cooling utility to a duty temperature that is below said phase-changing temperature and induces said phase change, the thermal mass of the cooling and processing chamber is sufficient to absorb at least 50% the thermal energy needed to cool said mixture and maintain the mixture in said duty temperature during the phase changes.