At this candle factory in South Korea, paraffin wax is melted into a liquid, mixed with powders for color and hardness, and pumped into molds with wicks. After hardening, any holes in the yellow or white cylinders are filled to ensure that they’re solid.

After extra wax is cut away, the candles are cut to size, labeled, and readied for bulk packaging. This wordless Factory Monster video documents each step of how candles are made in the factory.

This daily routine, repeated 365 days a year, showcases the diligence required in making unblemished long-burning candles for the company’s customers.