Liquid wax diffuses into the wick saturating the cotton fibers.
The fuel moves up the wick as it is consumed through the process of capillary action.
Vaporization of Fuel:
The flame’s heat vaporizes the liquid fuel to begin the combustion process.
All candle flames have varying degrees of complete and incomplete combustion.
Mushrooming, carbon capping, or carbon deposits are the result of unburned fuel and soot accumulating on the end of the wick.
Ideal Complete Combustion:
All combustion takes place on the outside edge of the flame where oxygen and heat are at their maximum.