A candle’s container size, wick length, and wax type all contribute to its burn time. Soy wax has a higher melting point than coconut wax, for example, and will take longer to burn. “The higher the melt point, the more hours of burn you’ll get, as it takes more time for the wax to liquefy from the heat of the flame,” Abigail Cook Stone, co-founder and CEO of Otherland, tells mbg.