When we light a candle, the wax is melted (liquified) then transformed by the flame’s heat into vapour. When the candle burns steadily with its iconographic teardrop-shaped flame, the combustion is extremely efficient. This combustion makes the solid wax dissolve into the air through a process of vaporisation.When we light a candle, the wax is melted (liquified) then transformed by the flame’s heat into vapour. When the candle burns steadily with its iconographic teardrop-shaped flame, the combustion is extremely efficient. This combustion makes the solid wax dissolve into the air through a process of vaporisation.When we light a candle, the wax is melted (liquified) then transformed by the flame’s heat into vapour. When the candle burns steadily with its iconographic teardrop-shaped flame, the combustion is extremely efficient. This combustion makes the solid wax dissolve into the air through a process of vaporisation.