Frozen substance maker

An apparatus to form a frozen substance from a liquid substance using directional freezing, the apparatus comprising:

• a mold structured with an interior chamber structured to contain the liquid substance, the mold having a mounting hole in an end thereof;
• and
• a directional freezing assembly including:
• a directional freezing probe being configured to insert in the mounting hole of the mold and being configured to extend into the interior chamber of the mold, a surface of the directional freezing probe having a nucleation site,
• a seal configured to seal between the directional freezing probe and the mounting hole in the mold;
• and
• a cold plate thermally connected to the directional freezing probe outside of the mold, and configured to dissipate heat drawn from the directional freezing probe to a surrounding environment,
• wherein the nucleation site of the directional freezing probe is configured to initiate an aligned crystal lattice for a clear ice formation formed by directional freezing of the liquid substance in thermal contact with the directional freezing probe and is configured to continue the directional freezing through the liquid substance to fill the interior chamber with the clear ice formation of the frozen substance,
• the mold and the frozen substance being removable from the directional freezing probe,
• the mold being removable from the frozen substance filing the interior chamber.