Freeze cells in tubes using the Thermo Scientific™ Mr. Frosty™ Freezing Container. The simple-to-use system is designed to achieve a rate of cooling very close to -1°C/minute, the optimal rate for cell preservation. It holds 18 tubes, and a screw top lid secures samples inside in the event of accidental container tipping.

• Small size, which saves precious freezer space during the cooling process
• Screw top lid secures samples inside in the event of accidental container tipping
• Eliminates unreliable, improvised foam container devices
• Easy to use - requires only 100% isopropyl alcohol and a mechanical freezer
• No contact with the alcohol: no wicking, no label removal and no compromise of tube hand printing
• Polycarbonate