The VT-08 when properly conditioned will last 76+ hours.
FAQ Category: Cool Cube™ FAQ
How long will the “VT-03” Cool Cube™ last?
The VT-03 when properly conditioned will last up to 65 hours.
Do I need a special freezer for the Varicella Cool Cube™ panels?
Your freezer must be below at least -15°C. -25°C or below is recommended to get the panels solid (for maximum hold time). The colder the storage environment, the less time is needed to condition the panels for use.