Method of rapid freezing ice cubes, characterised in that it comprises the following steps: a) Cold is produced through a conventional condenser and compressor and is brought to an enclosure in stainless steel, called cold store, until reaching a temperature of -30 oC, maintaining said temperature constant, b) By means of a forcing pump, a coolant liquid gel at -30 oC is pumped from a cooling coil located inside of said cold store, through an upward conduit, running into the spaces between cells where cubes are formed in an ice-tray, then returns to a downward conduit again to the cold store, continuing the cycle, c) Water necessary for refilling each of the cells forming the ice-tray is dispensed through a number of liquid dispensers attached in line to its structural support, d) A delay of 5 to 10 minute is allowed to lapse, depending on the cube size, until the water contained in each of said cells cools through the walls' contact with the gel, with an ultrasonic or infrared temperature detector detecting the moment when the ice has reached a set temperature, e) In that moment, a heater ring, which heats each cube until it can come off the walls of the cell, is activated, f) At the same time, a lower ice-tray gate swings about a hinge axis through the starting of a gear motor, thereby releasing a base or bottom cover of the cells so far covered by said gate, g) Upon release of a cell lower cover, the ice cube falls by presenting on its underside a distinctive sign or word initial engraved, which the upper side of said gate presents in bas-relief regularly spaced and coinciding with the base of the cells, h) Ice cubes slide down the ramp formed by said opened gate to a cube storage bin. a) Cold is produced through a conventional condenser and compressor and is brought to an enclosure in stainless steel, called cold store, until reaching a temperature of -30 oC, maintaining said temperature constant, b) By means of a forcing pump, a coolant liquid gel at -30 oC is pumped from a cooling coil located inside of said cold store, through an upward conduit, running into the spaces between cells where cubes are formed in an ice-tray, then returns to a downward conduit again to the cold store, continuing the cycle, c) Water necessary for refilling each of the cells forming the ice-tray is dispensed through a number of liquid dispensers attached in line to its structural support, d) A delay of 5 to 10 minute is allowed to lapse, depending on the cube size, until the water contained in each of said cells cools through the walls' contact with the gel, with an ultrasonic or infrared temperature detector detecting the moment when the ice has reached a set temperature, e) In that moment, a heater ring, which heats each cube until it can come off the walls of the cell, is activated, f) At the same time, a lower ice-tray gate swings about a hinge axis through the starting of a gear motor, thereby releasing a base or bottom cover of the cells so far covered by said gate, g) Upon release of a cell lower cover, the ice cube falls by presenting on its underside a distinctive sign or word initial engraved, which the upper side of said gate presents in bas-relief regularly spaced and coinciding with the base of the cells, h) Ice cubes slide down the ramp formed by said opened gate to a cube storage bin.