Tend vacuum cookers and open kettles to cook fruit and berries.
What does a Vacuum Kettle Cook do?
Tends vacuum cooker and open kettle to cook fruit and berries preparatory to making jams and jellies: Observes thermometer, turns rheostat and steam valve, or pushes switch or lights burner to heat vacuum cooker and open kettle to specified temperature. Turns valve to transfer contents of kettle into vacuum cooker. Observes refractometer on vacuum cooker to determine sugar content and adds ingredients according to formula. Places container under discharge outlet of distillation jacket of cooker to reclaim esters. Opens valve or starts pump to transfer contents of vacuum cooker to holding tank or filling machine.