For cold therapy: store the ice cap in the freezer for a minimum of two hours. It may be left in the freezer indefinitely until ready to use. It will remain flexible even at -28℃. Remove the wrap prior to defrosting the freezer. Note: always store products in a plastic bag while in freezer.
For heat therapy: the most convenient method of heating the wrap is in a microwave oven. Suggested heating times: 600-700 watt microwave: 30-45 seconds per side, 1100 watt: 30 seconds per side. Note: all microwaves very in heating and may have "hot spots" Be cautious when heating.