Straight freeze

Straight freeze is cryopreservation of the patient without administration of a cryoprotectant. Straight freeze results in complete freezing (i.e., ice crystal formation throughout all tissues of the patient), causing damage. However, in straight freeze, cryoprotectant toxicity is not an issue that needs solving.

Patients who were straight frozen include Ban Jung-gi, CI-100, Laurence Pilgeram, and Paul Segall.