A person in white lab coat, face shield, and heavy cryoprotective apron in front of a liquid nitrogen cell storage tank and vapour condensing.

The liquid nitrogen tank in which cell stocks are stored at bone-chilling –196 °C degrees 🧊, needs a deep clean every 2-3 years 🧹. Every time the tank is opened, atmospheric humidity condenses ☁️, and forms snowflakes ❄️❄️❄️.

Over time, these snowflakes gather in the tank and make handling of the cell towers more difficult. But, more importantly, the temperature sensor cannot operate correctly, if there is too much snow in the tank ❌.

So, when dry ice is ready for cell transportation, the cells can be moved to almost “tropical” temperatures of –80 °C 🌴, briefly, until the liquid nitrogen cell storage tank is ready to operate again! This must be done fast 🏃‍♀️, so that the viability of the cells will not suffer from the warm (storage) weather 👍☺️.

#liquidnitrogen #cells #cellstock #cellline #primarycells #finitecelllines #celltank #cellstorage #maintenance #deepclean #teamwork

Author: asban