When C-Warmer is turned on, it starts at the ambient temperature.
Recommended temperature setting for lidocaine : 37°C (body temperature) / composite : 40°C~45°C
C-Warmer is highly affected by the surrounding temperature such as AC system.
It takes about 10~15 min. to reach 40°C. and 20~25 min. to reach 50°C. (This is based on the lid closed and AC system turned off)