Material: plastic EVAC (ethylene-vinyl acetate copolymer), core made of aluminium alloy. Container for the controlled freezing of samples in cryogenic tubes or reaction vials at -80 °C for later cryogenic long-term storage. Heat-conducting alloy and optimised insulation for uniform cryo-preservation Controlled, reproducible gradual cooling rates for high cell survival rate Cooling rate (-1 °C/min) independent of filling quantity No alcohol or other coolant required Can be used directly without pre-cooling Directions for use Place the samples in the freezing container and close the lid. Incubate the freezing container at -80 °C for at least three hours and do not open it during this time. At the end of the incubation period, the samples can be removed and transferred, e.g. to a tank with liquid nitrogen, for long-term storage. Cryo-freezing container FreezeCell hexagonal