Twistable tray for heater less ice maker

A twistable, heater-less ice tray for an ice maker assembly, the ice tray comprising:

• a metal material;
• a plurality of recesses, wherein a major axis of one or more of the recesses is substantially angled with respect to a line normal to the longitudinal center line of the tray;
• and
• a plurality of weirs in fluid connection with one or more of the recesses, wherein a center line of one or more of the weirs is disposed substantially at a distance from the longitudinal center line of the ice tray, and
• further wherein each recess comprises an ice-phobic surface for direct contact with an ice piece, the ice-phobic surface comprises the metal material, is formed from the tray, is roughened at a microscopic level and is characterized by a water contact angle (θc) of at least 90 degrees for a 5 milliliter droplet of water.

A twistable, heater-less ice tray for an ice maker assembly, the ice tray comprising:

• a metal material;
• a plurality of recesses of a substantially oval-shaped top cross section, wherein a geometric center of one or more of the recesses is substantially at a distance from a longitudinal center line of the ice tray and wherein a major axis of one or more of the recesses is substantially angled with respect to the longitudinal center line of the ice tray;
• and
• a plurality of weirs in fluid connection with the recesses, wherein a center line of the weirs is disposed substantially angled with respect to the longitudinal center line of the tray, and wherein the center line of the weirs is disposed substantially at a distance from the longitudinal center line of the ice tray,
• wherein each recess comprises an ice-phobic surface for direct contact with an ice piece, the ice-phobic surface comprises the metal material, is formed from the tray, is roughened at a microscopic level and is characterized by a water contact angle (θc) of at least 90 degrees for a 5 milliliter droplet of water, and
• further wherein the recesses are staggered and spaced apart by the weirs.