For use in thermoboxes, keeps the temperature between -12 to -10Ā°C for 3 to 4 hours thanks to the eutectic plate.

Before use: freeze at -18Ā°C for 24 hours or until frozen solid.

To check if ready, shake the element and when you feel and hear nothing moving inside itā€™s ready.
Contains water & sodium polyacrylate.