Frozen section of biopsy with permenent-like quality within 3 seconds, no generating ice crystals, no need liquid nitrogen, no coolant evaporation. Efficiently Assisting Diagnosis with Fast Tissue Freezer Broadly speaking, it takes about one week of routine histopathology slide preparation to observation. However, there is some special urgent case can't wait so long, need quick diagnosis for related treatment on the same day. Our tissue freezer is specially designed for freezing the tissue within 30 seconds, the specific time depends on the tissue type and the thickness, the thicker section the more OCT will be represent.