Cryobiology is a process of freezing of cells, tissues and organs at very low temperatures and preserving their viability for purposes of long-term storage.Cryopal cryopreservation vessels are compliant with the Medical Device Class IIa requirements. Cryopal offers biological storage vessels for cryopreservation in nitrogen, both liquid and vapour phase. Maintaining the temperature lower than -130°C is vital for successful biological sample storage. Liquid nitrogen can reach the temperature as low as -196°C. What is better though, to store in liquid nitrogen or nitrogen gas? Both methods have their own advantages.