How is McDonald's ice made?

The ice making principle of the ice maker is an ice tray with many small grids on it, and then there is a row of water pipes with small water outlets at the top. The filtered water circulates in it, and the water is continuously sprayed on the ice plate. The ice tray is below 0 degrees, and then layers of frozen water are constantly washed and frozen. When it reaches a certain thickness, the ice plate heats and melts the ice at the bottom, and then a version of the ice falls, of course, into the container with ice below.