Both. Hot water and cold water can be used to soak rice dumplings, want to speed up some of the hot water can be used to increase the speed of cold water is slower, but soaked out of the rice dumplings will be more uniform, and finally will be soaked rice dumplings can be pinched off the rice can be. Whether using hot water or cold water, in addition to the difference in the speed of soaking, can be soaked rice dumplings, dumplings and other texture and will not have other effects.