Why does ice you buy from the store have holes in the middle? Also, why are they more clear than what a home icemaker produces?
In: 435
Water is sprayed up into metal molds that have refrigerant lines attached. As the mold cools, the water recirculates, getting colder every time until the water starts to freeze on the mold. Any particulate in the water gets pulled by gravity off of the growing ice. When the ice gets to a certain size, warm water is sprayed on top of the molds to loosen and free the ice.
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