METHOD FOR MANUFACTURING ICE AND APPARATUS THEREFOR

摘要

A method for manufacturing ice comprising the steps of supplying gas into a pressure-resistant vessel containing ice grains, pressure of the supplied gas being kept increased; applying press force to the ice grains to increase density of the ice grains, contact portions of the ice grains being allowed to be melted; and cooling the ice grains, in the state of being pressed, to allow the ice grains to be frozen. Gas to be introduced into the vessel is at least one selected from those of air, oxygen and carbon dioxide. An apparatus used for the method is also provided.