The LN2 itself is supposedly cheaper than bottled water.
Isn't LN2 the unwanted by-product of the processes used by Air Liquide/BOC,
(other non European companies no doubt also plunder the atmosphere),
who really only want the LO2/other gases in the atmosphere?
Much obliged.
You've prbably just put such a device on @dancing james ' letter to Santa Claus this year.