An ice maker assembly, comprising: an ice maker with a tray; a frame body that is coupled to the tray, the frame body having a pair of opposing side elevating walls, and the tray is located within the frame body; and a driving body that is rotatably coupled to the tray, wherein the frame body includes a first frame body stopper disposed on the frame body and a second frame body stopper disposed on the frame body, the tray has a first end having a first flange, and a second end having a second flange, wherein the driving body is adapted to: rotate tray in a first direction such that the second flange is raised in an upward direction toward the second frame body stopper until the second flange begins to press on the second frame body stopper; continue to rotate tray in the first direction although the second flange is pressing against the second frame body stopper, so that tray twists and flexes in the first direction causing ice pieces formed in recesses to release from tray and fall into a ice collection receptacle; rotate tray in a second direction opposite of the first direction such that the first flange is raised in an upward direction toward the first frame body stopper until the first flange begins to press on the first frame body stopper; and continue to rotate tray in the second direction although the first flange is pressing against the first frame body stopper, so that tray twists and flexes in the second direction causing ice pieces formed in recesses to release from tray and fall into the ice collection receptacle; characterized in that the tray is formed from substantially metal material; the first frame body stopper is disposed on one of the pair of opposing side elevating walls of the frame body and the second frame body stopper is disposed on the other of the pair of opposing side elevating walls of the frame body, the second frame body stopper opposing the first frame body stopper; the tray has recesses with ice-phobic surfaces for direct contact with ice pieces formed in the recesses, the ice-phobic surfaces having a surface roughness (Ra) from 0.02 to 2 microns. an ice maker with a tray; a frame body that is coupled to the tray, the frame body having a pair of opposing side elevating walls, and the tray is located within the frame body; and a driving body that is rotatably coupled to the tray, rotate tray in a first direction such that the second flange is raised in an upward direction toward the second frame body stopper until the second flange begins to press on the second frame body stopper; continue to rotate tray in the first direction although the second flange is pressing against the second frame body stopper, so that tray twists and flexes in the first direction causing ice pieces formed in recesses to release from tray and fall into a ice collection receptacle; rotate tray in a second direction opposite of the first direction such that the first flange is raised in an upward direction toward the first frame body stopper until the first flange begins to press on the first frame body stopper; and continue to rotate tray in the second direction although the first flange is pressing against the first frame body stopper, so that tray twists and flexes in the second direction causing ice pieces formed in recesses to release from tray and fall into the ice collection receptacle; characterized in that the tray is formed from substantially metal material; the first frame body stopper is disposed on one of the pair of opposing side elevating walls of the frame body and the second frame body stopper is disposed on the other of the pair of opposing side elevating walls of the frame body, the second frame body stopper opposing the first frame body stopper; the tray has recesses with ice-phobic surfaces for direct contact with ice pieces formed in the recesses, the ice-phobic surfaces having a surface roughness (Ra) from 0.02 to 2 microns.