With the growth of the whaling industry in the 18th century, spermaceti, an oil that comes from a cavity in the head of the sperm whale, became a widely used substance for candle making. The spermaceti was obtained by crystallizing the oil from the sperm whale and was the first candle substance to become available in mass quantities. Like beeswax, spermaceti wax did not create a repugnant odor when burned, and produced a significantly brighter light.