how to use
Press and bend the metal plate in the Eco Cairo lightly. The transparent content crystallizes white and emits heat.
Lightly rub the crystallized eco warmer.
(If the temperature is too high, wrap it in a thin towel before use.)
Reuse method
Put the cooled and hardened eco warmer in boiling water and boil for about 5 minutes until the white and hardened crystals completely return to the original transparent liquid. It can be reused by removing heat.
Warning: Do not heat directly in the microwave.