Abstract: A device for producing an elongate ingot of clear ice comprises a housing comprising at least one flume surface wall that defines at least one elongate trough; at least one fluid intake disposed to provide a flow of liquid into the at least one elongate trough; at least one drain disposed to drain liquid from at least one elongate trough; wherein the at least a portion of the at least one flume surface wall is in thermal communication with a cooling source; and wherein the at least one fluid intake and the at least one drain are adapted to provide a constant flow of fluid to the at least one elongate trough during a freezing operation of the device. The cooling source can be an internal cooling cavity.

Abstract: Methods and devices for planing ice are described that include at least receiving, at a planing apparatus, an elongate ice ingot, feeding the elongate ice ingot at a configurable rate through an opening in a cutterhead assembly of the planing apparatus, and planing, by the cutterhead assembly, a plurality of surfaces of the elongate ice ingot at a predefined depth as the elongate ice ingot is fed linearly through the opening of the cutterhead assembly. The planing may result in a planed ice ingot.

Abstract: Methods and devices are described for shaping ingots of ice. Devices may include a support structure, a mold for shaping ice ingots, the mold being mounted to the support structure. The devices may also include a first upper platen assembly disposed above a first lower platen assembly, a first positioning means, and at least one liquid inlet valve for each of the first upper platen assembly and the first lower platen assembly.