An electrically powered juicer has a treatment module arranged to subject the expressed juice to a pasteurization or UHT process in order to prevent the rapid deterioration in quality of the expressed juice that otherwise occurs. The lifetime of the juice expressed by the juicer is considerably extended, allowing juice to be prepared in larger volumes than previously and thus negating the requirement for juicing on demand. The treatment module includes serially arranged heating means and cooling means, operative while the expressed juice is traversing a meandering pathway, and a thermostatically controlled element sited and configured to ensure that the heating operation is automatically repeated in the event that juice exiting the heating operation has not reached a predetermined temperature required for the pasteurization or UHT process.
