What is a candle wick made of?

A candle wick is typically made of cotton or another natural fiber such as hemp or bamboo. The wick acts as a fuel delivery system, drawing melted wax up to the flame where it is vaporized and burned. The size and material of the wick can affect the burning quality and duration of the candle. A larger wick will produce a larger flame and more heat, while a smaller wick will burn more slowly and create a smaller flame. Some wicks are treated with chemicals to help them burn more evenly and reduce soot, while others are left untreated for those seeking a more natural option.