A method for cooling a consumer over a cooling path extending between a first end and a second end, wherein - liquid nitrogen in the form of a circulating flow is continuously and repeatedly subjected to a first cooling in the circuit; supplied to the cooling path at the first end; transported from the first end to the second end along the cooling path; removed from the cooling path at the second end; subjected to a second cooling; supplied to the cooling path at the second end; transported from the second end to the first end along the cooling path; and removed from the cooling path at the first end, - the first cooling is performed using a first supercooled nitrogen bath, and the second cooling is performed using a second supercooled nitrogen bath, wherein the first nitrogen bath is supercooled at least in part by means of a closed cooling device, and the second nitrogen bath is supercooled at least in part via pressure reduction to a sub-atmospheric pressure level, - an amount of nitrogen evaporating from the second nitrogen bath due to the pressure reduction to the sub-atmospheric pressure level is at least partially compensated from a reservoir, - liquid nitrogen is removed from the reservoir and introduced into the circulating flow before said circulating flow is supplied to the cooling path at the first end, and - liquid nitrogen is discharged from the circulating flow and supplied at least in part to the second nitrogen bath after the circulating flow is removed from the cooling path at the second end, - characterized in that the liquid nitrogen, in the form of the circulating flow, is conducted along the cooling path through one or more first cooling passages during transport from the first end to the second end, and along the cooling path through one or more second cooling passages during transport from the second end to the first end, which second cooling passage(s) is or are fluidically separated from the one or more first cooling passages. - liquid nitrogen in the form of a circulating flow is continuously and repeatedly subjected to a first cooling in the circuit; supplied to the cooling path at the first end; transported from the first end to the second end along the cooling path; removed from the cooling path at the second end; subjected to a second cooling; supplied to the cooling path at the second end; transported from the second end to the first end along the cooling path; and removed from the cooling path at the first end, - the first cooling is performed using a first supercooled nitrogen bath, and the second cooling is performed using a second supercooled nitrogen bath, wherein the first nitrogen bath is supercooled at least in part by means of a closed cooling device, and the second nitrogen bath is supercooled at least in part via pressure reduction to a sub-atmospheric pressure level, - an amount of nitrogen evaporating from the second nitrogen bath due to the pressure reduction to the sub-atmospheric pressure level is at least partially compensated from a reservoir, - liquid nitrogen is removed from the reservoir and introduced into the circulating flow before said circulating flow is supplied to the cooling path at the first end, and - liquid nitrogen is discharged from the circulating flow and supplied at least in part to the second nitrogen bath after the circulating flow is removed from the cooling path at the second end, - characterized in that the liquid nitrogen, in the form of the circulating flow, is conducted along the cooling path through one or more first cooling passages during transport from the first end to the second end, and along the cooling path through one or more second cooling passages during transport from the second end to the first end, which second cooling passage(s) is or are fluidically separated from the one or more first cooling passages.