An evaporator apparatus comprising at least one container configured to maintain liquid for freezing and a plurality of heat transfer compartments configured around the at least one container to allow for the flow of cold anti-freeze in order to freeze the liquid and warm anti-freeze in order to thaw frozen blocks of ice contained within the evaporator apparatus. A lever integrated into the body of the evaporator to allow for rotation of the evaporation in order to harvest the frozen blocks of ice. The evaporator further including, at least one inlet opening to allow for the inflow of anti-freeze into the plurality of heat transfer compartments and at least one outlet opening to allow for the discharge of anti-freeze from the evaporator apparatus.