]N'obodo ụfọdụ ma ọ bụ mpaghara, okpomọkụ n'oge oyi ga-erute n'okpuru 0 Celsius, nke ga-eme ka mmiri oyi na-eme ka ụlọ ọrụ na-ekpo ọkụ na-ekpo ọkụ ma ghara ịrụ ọrụ nke ọma. Enwere ụkpụrụ atọ maka ojiji antifreeze chiller na mgbochi chiller ahọpụtara kwesịrị ịnwe njirimara ise.