A dewar used for nitrogen storage is a vacuum-insulated vessel that maintains cryogenic temperatures through the physical properties of its construction rather than any mechanical refrigeration system. The double-wall design with an evacuated space between the walls suppresses heat conduction and radiation, allowing liquid nitrogen to be held at minus 196 degrees Celsius for weeks or months with relatively modest evaporation.
Choosing the right dewar for nitrogen storage begins with an honest assessment of your storage volume and access frequency. Our range includes the compact CryoCan 30-6 through to larger vessels including the CryoCan 47-10 and the CryoNest XL series for higher-volume applications.
Never allow the liquid nitrogen level to drop below 25 percent of the vessel capacity: most alarm systems alert at this threshold, and allowing LN2 to deplete further risks specimen exposure to warming and potentially irreversible damage. Weekly LN2 level checks are a minimum standard, with daily checks preferable in high-value clinical environments. Every fill, level check, and any observation of unusual behaviour should be recorded in a written log. Always use a cryogenic face shield and elbow-length cryogenic gloves when handling LN2.
Find the right nitrogen storage dewar for your application along with monitoring equipment, accessories, and full UK technical support from our team.
